Crochet Baby Blanket Sea Animals Pattern

Dive into the world of crochet with my captivating crochet baby blanket sea animals pattern, featuring six charming c2c sea creatures: a playful whale, a clever octopus, colorful fish, graceful jellyfish, a serene turtle, and a charming seahorse.

Create a whimsical aquatic-themed crochet baby blanket that’s perfect for cuddling or gifting to ocean-loving friends and family. The free crochet pattern is below.

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Crochet Sea Animals

CROCHET PATTERN INFORMATION

Skill Level

This free c2c crochet baby blanket pattern is a Level 3 Intermediate.

Crochet Baby Blanket Project Materials

Finished Size

My crochet baby blanket measured 45 inches by 67  inches.

  • To make this crochet baby blanket, you can choose to follow the pixel graph or the written instructions.
  • Written instructions are for working from the bottom right corner to the top left.
  • Crochet the pixel graph using the corner-to-corner (c2c) technique. Use the traditional method of making three double crochets for each square.
  • Chain 6 to start each new row and chain 3 at the beginning of each square.

Crochet Baby Blanket Gauge

4 squares (ch 3 + 3 dc) = 2 inches

  • dc = double crochet
  • hdc = half double crochet
  • sc = single crochet
  • ch = chain
  • chs = chains
  • st = stitch
  • sts = stitches
  • sl st = slip stitch

How to c2c Crochet

Corner to corner (c2c) crochet is a technique where you crochet “squares” in diagonal rows. You start your crochet baby blanket in the bottom right corner and end in the top left corner.

Each row is increased by one square until you reach the width & length. Each square in the graph = chain 3 + 3 double crochet.

c2c Crochet Increases

Increases are made at the end of each row. Chain 6 and DC in the 4th chain from the hook and in each of the 2 remaining chains.

You will have a chain 3 + 3 DC square. This is your first square for the beginning of the next row.

Turn your crochet baby blanket and join with a slip stitch to the chain 3 space from the last square made. 

c2c Crochet Decreases

The first decreases for both the width and length will create corners.

To decrease, turn your work and slip stitch across the 3 DC’s in the last square made.

Join with a slip stitch to the chain 3 space and chain 3 + 3 DC.

Etsy Shop

Many of my easy crochet patterns are also available as ad-free PDF patterns in my Etsy Shop.

Related Crochet Patterns

If you like this crochet baby blanket pattern, you may also like my Woodland crochet animals blanket, Jungle blanket, and Cactus blanket free crochet blanket patterns.

Save my free crochet patterns ↓ to your Pinterest Boards.

pinterest pin with an image of a woman holding a crochet sea animals themed blanket

CROCHET BABY BLANKET PATTERN INSTRUCTIONS

STEP 1: Crochet each Animal

Make each crochet baby blanket animal following the graph or the written instructions.

#1. Crochet Baby Blanket Turtle Pattern

crochet turtle

For my crochet baby blanket turtle pattern, I used Red Heart Super Saver yarn in White, Black, Honeydew, Spring GreenPale Yellow.

↙ Row 1: white x 1 (1 square)  

↗ Row 2: white x 2 (2 squares)  

↙ Row 3: white x 3 (3 squares)  

↗ Row 4: white x 4 (4 squares)  

↙ Row 5: white x 5 (5 squares)  

↗ Row 6: white x 6 (6 squares)  

↙ Row 7: white x 7 (7 squares)  

↗ Row 8: white x 8 (8 squares)  

↙ Row 9: white x 9 (9 squares)  

↗ Row 10: white x 10 (10 squares)  

↙ Row 11: white x 11 (11 squares)  

↗ Row 12: white x 12 (12 squares)  

↙ Row 13: white x 13 (13 squares)  

↗ Row 14: white x 14 (14 squares)  

↙ Row 15: white x 15 (15 squares)  

↗ Row 16: white x 16 (16 squares)  

↙ Row 17: white x 17 (17 squares)  

↗ Row 18: white x 15, light green x 2, white x 1 (18 squares)  

↙ Row 19: white x 2, light green x 2, white x 15 (19 squares)  

↗ Row 20: white x 7, light green x 1, white x 7, light green x 2, white x 3 (20 squares)  

↙ Row 21: white x 3, light green x 3, white x 6, light green x 2, white x 7 (21 squares)  

↗ Row 22: white x 7, light green x 3, white x 5, light green x 3, white x 4 (22 squares)  

↙ Row 23: white x 5, light green x 2, yellow x 2, white x 4, light green x 2, white x 8 (23 squares)  

↗ Row 24: white x 8, light green x 3, white x 2, yellow x 3, green x 3, white x 5 (24 squares)  

↙ Row 25: white x 5, green x 5, yellow x 3, white x 1, light green x 3, white x 8 (25 squares)  

↗ Row 26: white x 8, light green x 4, yellow x 3, green x 6, white x 5 (26 squares)  

↙ Row 27: white x 6, green x 6, yellow x 2, light green x 4, white x 9 (27 squares)  

↗ Row 28: white x 9, light green x 5, yellow x 1, green x 7, white x 6 (28 squares)  

↙ Row 29: white x 6, green x 8, light green x 5, white x 10 (29 squares)  

↗ Row 30: white x 10, light green x 5, green x 8, white x 7 (30 squares)  

↙ Row 31: white x 7, green x 9, light green x 4, white x 11 (31 squares)  

↗ Row 32: white x 12, light green x 3, green x 10, white x 7 (32 squares)  

↙ Row 33: white x 8, green x 10, light green x 2, yellow x 1, white x 12 (33 squares)  

↗ Row 34: white x 12, yellow x 1, light green x 2, green x 11, white x 8 (34 squares)  

↙ Row 35: white x 9, green x 11, light green x 1, yellow x 2, white x 12 (35 squares)  

↗ Row 36: white x 12, yellow x 3, light green x 1, green x 10, white x 10 (36 squares)  

↙ Row 37: white x 10, green x 11, yellow x 3, white x 2, light green x 1, white x 10 (37 squares)  

↗ Row 38: white x 10, light green x 2, white x 1, yellow x 4, green x 10, white x 11 (38 squares)  

↙ Row 39: white x 12, green x 10, yellow x 4, light green x 2, white x 11 (39 squares)  

↗ Row 40: white x 11, light green x 2, yellow x 5, green x 10, white x 12 (40 squares)  

Corner: Start decreasing on both ends  

crochet turtle

↙ Row 41: white x 12, green x 10, yellow x 4, light green x 2, white x 11 (39 squares)  

↗ Row 42: white x 10, light green x 2, yellow x 5, green x 9, white x 12 (38 squares)  

↙ Row 43: white x 11, green x 10, yellow x 4, light green x 2, white x 10 (37 squares)  

↗ Row 44: white x 10, light green x 1, yellow x 5, green x 9, white x 11 (36 squares)  

↙ Row 45: white x 11, green x 9, light green x 3, yellow x 1, light green x 1, white x 10 (35 squares)  

↗ Row 46: white x 11, light green x 4, green x 8, white x 11 (34 squares)  

↙ Row 47: white x 11, green x 8, light green x 3, white x 11 (33 squares)  

↗ Row 48: white x 10, light green x 4, green x 7, white x 11 (32 squares)  

↙ Row 49: white x 12, green x 5, light green x 4, white x 10 (31 squares)  

↗ Row 50: white x 9, light green x 6, green x 2, white x 13 (30 squares)  

↙ Row 51: white x 14, light green x 7, white x 8 (29 squares)  

↗ Row 52: white x 7, light green x 8, white x 13 (28 squares)  

↙ Row 53: white x 12, light green x 6, black x 2, light green x 1, white x 6 (27 squares)  

↗ Row 54: white x 5, light green x 1, black x 1, light green x 7, white x 12 (26 squares)  

↙ Row 55: white x 11, light green x 8, black x 1, light green x 1, white x 4 (25 squares)  

↗ Row 56: white x 4, light green x 10, white x 10 (24 squares)  

↙ Row 57: white x 10, light green x 4, white x 1, light green x 5, white x 3 (23 squares)  

↗ Row 58: white x 3, light green x 4, white x 2, light green x 4, white x 9 (22 squares)  

↙ Row 59: white x 9, light green x 3, white x 1, black x 1, white x 1, light green x 4, white x 2 (21 squares)  

↗ Row 60: white x 2, light green x 4, white x 2, light green x 3, white x 9 (20 squares)  

↙ Row 61: white x 8, light green x 4, white x 1, light green x 4, white x 2 (19 squares)  

↗ Row 62: white x 2, light green x 8, white x 8 (18 squares)  

↙ Row 63: white x 8, light green x 7, white x 2 (17 squares)  

↗ Row 64: white x 3, light green x 5, white x 8 (16 squares)  

↙ Row 65: white x 9, light green x 2, white x 4 (15 squares)  

↗ Row 66: white x 14 (14 squares)  

↙ Row 67: white x 13 (13 squares)  

↗ Row 68: white x 12 (12 squares)  

↙ Row 69: white x 11 (11 squares)  

↗ Row 70: white x 10 (10 squares)  

↙ Row 71: white x 9 (9 squares)  

↗ Row 72: white x 8 (8 squares)  

↙ Row 73: white x 7 (7 squares)  

↗ Row 74: white x 6 (6 squares)  

↙ Row 75: white x 5 (5 squares)  

↗ Row 76: white x 4 (4 squares)  

↙ Row 77: white x 3 (3 squares)  

↗ Row 78: white x 2 (2 squares)  

↙ Row 79: white x 1 (1 square)  

Border

In each corner you will make (sc-ch 2-sc) and in the side of each square you will make 2 sc.

crochet turtle
crochet turtle

#2. Crochet Baby Blanket Jellyfish Pattern

crochet jellyfish

For my crochet baby blanket jellyfish pattern, I used Red Heart Super Saver yarn in White, Black, Pretty n Pink & Baby Pink.

↙ Row 1: white x 1 (1 square)  

↗ Row 2: white x 2 (2 squares)  

↙ Row 3: white x 3 (3 squares)  

↗ Row 4: white x 4 (4 squares)  

↙ Row 5: white x 5 (5 squares)  

↗ Row 6: white x 6 (6 squares)  

↙ Row 7: white x 7 (7 squares)  

↗ Row 8: white x 8 (8 squares)  

↙ Row 9: white x 9 (9 squares)  

↗ Row 10: white x 10 (10 squares)  

↙ Row 11: white x 11 (11 squares)  

↗ Row 12: white x 12 (12 squares)  

↙ Row 13: white x 13 (13 squares)  

↗ Row 14: white x 14 (14 squares)  

↙ Row 15: white x 15 (15 squares)  

↗ Row 16: white x 16 (16 squares)  

↙ Row 17: white x 12, dark pink x 1, white x 4 (17 squares)  

↗ Row 18: white x 5, dark pink x 1, white x 12 (18 squares)  

↙ Row 19: white x 11, dark pink x 2, white x 2, dark pink x 1, white x 3 (19 squares)  

↗ Row 20: white x 4, dark pink x 1, white x 2, pink x 1, dark pink x 1, white x 11 (20 squares)  

↙ Row 21: white x 11, dark pink x 1, pink x 1, white x 2, dark pink x 1, white x 5 (21 squares)  

↗ Row 22: white x 2, dark pink x 1, white x 2, pink x 1, dark pink x 1, white x 2, pink x 1, dark pink x 1, white x 11 (22 squares)  

↙ Row 23: white x 11, pink x 2, white x 2, dark pink x 1, pink x 1, white x 2, dark pink x 1, white x 3 (23 squares)  

↗ Row 24: white x 4, dark pink x 1, white x 2, pink x 1, dark pink x 1, white x 2, dark pink x 1, pink x 1, white x 11 (24 squares)  

↙ Row 25: white x 11, pink x 1, dark pink x 1, white x 2, pink x 1, dark pink x 1, white x 2, pink x 1, dark pink x 1, white x 4 (25 squares)  

↗ Row 26: white x 5, dark pink x 1, pink x 1, white x 2, dark pink x 1, pink x 1, white x 2, dark pink x 1, pink x 1, white x 11 (26 squares)  

↙ Row 27: white x 11, pink x 1, dark pink x 1, white x 2, pink x 1, dark pink x 1, white x 2, pink x 1, dark pink x 1, white x 6 (27 squares)  

↗ Row 28: white x 4, dark pink x 1, white x 2, dark pink x 1, pink x 1, white x 2, dark pink x 1, pink x 1, white x 2, dark pink x 1, pink x 1, white x 11 (28 squares)  

↙ Row 29: white x 11, pink x 1, dark pink x 1, white x 2, pink x 1, dark pink x 1, white x 2, pink x 1, dark pink x 1, white x 2, dark pink x 1, white x 5 (29 squares)  

↗ Row 30: white x 6, dark pink x 1, white x 2, dark pink x 1, pink x 1, white x 2, dark pink x 1, pink x 1, white x 2, dark pink x 2, white x 11 (30 squares)  

↙ Row 31: white x 11, dark pink x 1, pink x 1, white x 2, pink x 1, dark pink x 1, white x 2, pink x 1, dark pink x 1, white x 2, dark pink x 1, pink x 1, white x 2, dark pink x 1, white x 3 (31 squares)  

↗ Row 32: white x 4, dark pink x 1, white x 2, pink x 1, dark pink x 1, white x 2, dark pink x 2, white x 2, dark pink x 2, white x 2, pink x 1, dark pink x 1, white x 1, pink x 2, white x 8 (32 squares)  

↙ Row 33: white x 8, pink x 3, dark pink x 1, pink x 1, white x 2, dark pink x 2, white x 2, dark pink x 2, white x 2, dark pink x 1, pink x 1, white x 1, dark pink x 2, white x 5 (33 squares)  

↗ Row 34: white x 6, pink x 1, dark pink x 1, white x 1, pink x 1, dark pink x 1, white x 2, pink x 1, dark pink x 1, white x 2, pink x 1, dark pink x 1, white x 2, pink x 5, white x 8 (34 squares)  

↙ Row 35: white x 8, pink x 5, white x 2, dark pink x 1, pink x 1, white x 2, dark pink x 1, pink x 1, white x 2, dark pink x 1, pink x 1, white x 1, dark pink x 1, pink x 1, white x 7 (35 squares)  

↗ Row 36: white x 8, pink x 1, dark pink x 1, white x 1, pink x 1, dark pink x 1, white x 2, pink x 1, dark pink x 1, white x 2, pink x 1, dark pink x 1, white x 1, pink x 6, white x 8 (36 squares)  

↙ Row 37: white x 8, pink x 7, dark pink x 1, pink x 1, white x 2, dark pink x 1, pink x 1, white x 2, pink x 1, dark pink x 1, white x 1, pink x 2, white x 9 (37 squares)  

↗ Row 38: white x 10, dark pink x 1, pink x 1, white x 1, dark pink x 1, pink x 1, white x 2, pink x 1, dark pink x 1, white x 2, pink x 9, white x 8 (38 squares)  

↙ Row 39: white x 9, pink x 8, white x 2, dark pink x 1, pink x 1, white x 2, pink x 1, dark pink x 1, white x 1, pink x 1, dark pink x 1, white x 11 (39 squares)  

↗ Row 40: white x 12, dark pink x 1, pink x 1, white x 1, dark pink x 1, pink x 1, white x 2, pink x 1, dark pink x 1, white x 1, pink x 9, white x 9 (40 squares)  

Corner: Start decreasing on both ends  

crochet jellyfish

↙ Row 41: white x 8, pink x 4, white x 1, pink x 5, dark pink x 1, pink x 1, white x 2, dark pink x 2, white x 1, pink x 1, dark pink x 1, white x 12 (39 squares)  

↗ Row 42: white x 12, dark pink x 1, pink x 1, white x 1, dark pink x 2, white x 2, pink x 6, white x 2, pink x 3, white x 8 (38 squares)  

↙ Row 43: white x 7, pink x 3, white x 1, black x 1, white x 1, pink x 1, black x 2, pink x 2, white x 2, dark pink x 1, pink x 1, white x 1, pink x 1, dark pink x 1, white x 12 (37 squares)  

↗ Row 44: white x 12, dark pink x 1, white x 2, pink x 1, dark pink x 1, white x 1, pink x 2, black x 1, pink x 3, white x 1, black x 1, white x 1, pink x 2, white x 7 (36 squares)  

↙ Row 45: white x 6, pink x 3, white x 2, pink x 4, black x 1, pink x 2, dark pink x 1, pink x 1, white x 2, dark pink x 1, white x 12 (35 squares)  

↗ Row 46: white x 11, pink x 1, dark pink x 1, white x 2, pink x 3, black x 1, pink x 5, white x 1, pink x 3, white x 6 (34 squares)  

↙ Row 47: white x 5, pink x 13, white x 2, dark pink x 1, pink x 1, white x 11 (33 squares)  

↗ Row 48: white x 11, pink x 1, dark pink x 1, white x 1, pink x 3, black x 1, pink x 9, white x 5 (32 squares)  

↙ Row 49: white x 4, pink x 14, dark pink x 1, pink x 1, white x 11 (31 squares)  

↗ Row 50: white x 11, pink x 15, white x 4 (30 squares)  

↙ Row 51: white x 4, pink x 14, white x 11 (29 squares)  

↗ Row 52: white x 10, pink x 5, white x 1, pink x 9, white x 3 (28 squares)  

↙ Row 53: white x 3, pink x 8, white x 2, pink x 5, white x 9 (27 squares)  

↗ Row 54: white x 9, pink x 4, white x 1, black x 1, white x 1, pink x 7, white x 3 (26 squares)  

↙ Row 55: white x 2, pink x 7, white x 1, black x 1, white x 1, pink x 5, white x 8 (25 squares)  

↗ Row 56: white x 8, pink x 5, white x 2, pink x 7, white x 2 (24 squares)  

↙ Row 57: white x 2, pink x 7, white x 1, pink x 5, white x 8 (23 squares)  

↗ Row 58: white x 8, pink x 12, white x 2 (22 squares)  

↙ Row 59: white x 2, pink x 11, white x 8 (21 squares)  

↗ Row 60: white x 8, pink x 10, white x 2 (20 squares)  

↙ Row 61: white x 3, pink x 8, white x 8 (19 squares)  

↗ Row 62: white x 9, pink x 5, white x 4 (18 squares)  

↙ Row 63: white x 17 (17 squares)  

↗ Row 64: white x 16 (16 squares)  

↙ Row 65: white x 15 (15 squares)  

↗ Row 66: white x 14 (14 squares)  

↙ Row 67: white x 13 (13 squares)  

↗ Row 68: white x 12 (12 squares)  

↙ Row 69: white x 11 (11 squares)  

↗ Row 70: white x 10 (10 squares)  

↙ Row 71: white x 9 (9 squares)  

↗ Row 72: white x 8 (8 squares)  

↙ Row 73: white x 7 (7 squares)  

↗ Row 74: white x 6 (6 squares)  

↙ Row 75: white x 5 (5 squares)  

↗ Row 76: white x 4 (4 squares)  

↙ Row 77: white x 3 (3 squares)  

↗ Row 78: white x 2 (2 squares)  

↙ Row 79: white x 1 (1 square)  

Border

In each corner you will make (sc-ch 2-sc) and in the side of each square you will make 2 sc.

crochet jellyfish
crochet jellyfish

#3. Crochet Baby Blanket Octopus Pattern

crochet octopus

For my crochet baby blanket octopus pattern, I used Red Heart Super Saver yarn in White, Black, and Orchid.

↙ Row 1: white x 1 (1 square)  

↗ Row 2: white x 2 (2 squares)  

↙ Row 3: white x 3 (3 squares)  

↗ Row 4: white x 4 (4 squares)  

↙ Row 5: white x 5 (5 squares)  

↗ Row 6: white x 6 (6 squares)  

↙ Row 7: white x 7 (7 squares)  

↗ Row 8: white x 8 (8 squares)  

↙ Row 9: white x 9 (9 squares)  

↗ Row 10: white x 10 (10 squares)  

↙ Row 11: white x 11 (11 squares)  

↗ Row 12: white x 7, purple x 1, white x 4 (12 squares)  

↙ Row 13: white x 4, purple x 3, white x 6 (13 squares)  

↗ Row 14: white x 6, purple x 4, white x 4 (14 squares)  

↙ Row 15: white x 4, purple x 5, white x 6 (15 squares)  

↗ Row 16: white x 7, purple x 2, white x 1, purple x 2, white x 4 (16 squares)  

↙ Row 17: white x 4, purple x 2, white x 2, purple x 2, white x 7 (17 squares)  

↗ Row 18: white x 2, purple x 3, white x 3, purple x 1, white x 2, purple x 2, white x 5 (18 squares)  

↙ Row 19: white x 5, purple x 2, white x 2, purple x 1, white x 3, purple x 4, white x 2 (19 squares)  

↗ Row 20: white x 4, purple x 3, white x 5, purple x 2, white x 6 (20 squares)  

↙ Row 21: white x 6, purple x 2, white x 5, purple x 3, white x 5 (21 squares)  

↗ Row 22: white x 6, purple x 3, white x 4, purple x 2, white x 7 (22 squares)  

↙ Row 23: white x 7, purple x 3, white x 4, purple x 2, white x 7 (23 squares)  

↗ Row 24: white x 7, purple x 3, white x 3, purple x 3, white x 8 (24 squares)  

↙ Row 25: white x 5, purple x 3, white x 1, purple x 3, white x 2, purple x 3, white x 8 (25 squares)  

↗ Row 26: white x 2, purple x 1, white x 5, purple x 3, white x 2, purple x 3, white x 1, purple x 4, white x 5 (26 squares)  

↙ Row 27: white x 5, purple x 9, white x 1, purple x 3, white x 6, purple x 1, white x 2 (27 squares)  

↗ Row 28: white x 3, purple x 1, white x 5, purple x 3, white x 2, purple x 9, white x 5 (28 squares)  

↙ Row 29: white x 6, purple x 2, white x 1, purple x 6, white x 1, purple x 3, white x 5, purple x 2, white x 3 (29 squares)  

↗ Row 30: white x 4, purple x 2, white x 4, purple x 3, white x 1, purple x 6, white x 2, purple x 2, white x 6 (30 squares)  

↙ Row 31: white x 7, purple x 2, white x 2, purple x 16, white x 4 (31 squares)  

↗ Row 32: white x 5, purple x 15, white x 3, purple x 1, white x 8 (32 squares)  

↙ Row 33: white x 9, purple x 1, white x 3, purple x 14, white x 6 (33 squares)  

↗ Row 34: white x 7, purple x 14, white x 13 (34 squares)  

↙ Row 35: white x 14, purple x 13, white x 8 (35 squares)  

↗ Row 36: white x 10, purple x 12, white x 14 (36 squares)  

↙ Row 37: white x 14, purple x 9, white x 14 (37 squares)  

↗ Row 38: white x 6, purple x 2, white x 6, purple x 11, white x 13 (38 squares)  

↙ Row 39: white x 12, purple x 13, white x 5, purple x 3, white x 6 (39 squares)  

↗ Row 40: white x 6, purple x 4, white x 3, purple x 16, white x 11 (40 squares)  

Corner: Start decreasing on both ends  

crochet octopus

↙ Row 41: white x 10, purple x 17, white x 4, purple x 3, white x 5 (39 squares)  

↗ Row 42: white x 5, purple x 2, white x 4, purple x 18, white x 9 (38 squares)  

↙ Row 43: white x 8, purple x 6, black x 2, purple x 11, white x 3, purple x 3, white x 4 (37 squares)  

↗ Row 44: white x 4, purple x 3, white x 2, purple x 11, black x 1, purple x 8, white x 7 (36 squares)  

↙ Row 45: white x 7, purple x 4, white x 1, purple x 3, black x 1, purple x 15, white x 4 (35 squares)  

↗ Row 46: white x 4, purple x 14, black x 1, purple x 3, white x 2, purple x 4, white x 6 (34 squares)  

↙ Row 47: white x 5, purple x 4, white x 1, black x 1, white x 1, purple x 11, white x 1, purple x 5, white x 4 (33 squares)  

↗ Row 48: white x 4, purple x 4, white x 1, purple x 3, white x 2, purple x 3, black x 1, purple x 3, white x 1, black x 1, white x 1, purple x 3, white x 5 (32 squares)  

↙ Row 49: white x 4, purple x 4, white x 2, purple x 7, white x 3, purple x 3, white x 8 (31 squares)  

↗ Row 50: white x 7, purple x 3, white x 4, purple x 4, white x 1, purple x 2, white x 1, purple x 4, white x 4 (30 squares)  

↙ Row 51: white x 3, purple x 7, white x 2, purple x 4, white x 4, purple x 2, white x 7 (29 squares)  

↗ Row 52: white x 6, purple x 2, white x 5, purple x 3, white x 1, black x 1, white x 1, purple x 6, white x 3 (28 squares)  

↙ Row 53: white x 2, purple x 6, white x 1, black x 1, white x 1, purple x 4, white x 4, purple x 2, white x 6 (27 squares)  

↗ Row 54: white x 5, purple x 2, white x 1, purple x 2, white x 2, purple x 4, white x 2, purple x 6, white x 2 (26 squares)  

↙ Row 55: white x 2, purple x 6, white x 1, purple x 4, white x 3, purple x 4, white x 5 (25 squares)  

↗ Row 56: white x 5, purple x 3, white x 4, purple x 10, white x 2 (24 squares)  

↙ Row 57: white x 1, purple x 10, white x 5, purple x 2, white x 5 (23 squares)  

↗ Row 58: white x 11, purple x 10, white x 1 (22 squares)  

↙ Row 59: white x 1, purple x 9, white x 11 (21 squares)  

↗ Row 60: white x 11, purple x 8, white x 1 (20 squares)  

↙ Row 61: white x 2, purple x 6, white x 11 (19 squares)  

↗ Row 62: white x 12, purple x 4, white x 2 (18 squares)  

↙ Row 63: white x 17 (17 squares)  

↗ Row 64: white x 16 (16 squares)  

↙ Row 65: white x 15 (15 squares)  

↗ Row 66: white x 14 (14 squares)  

↙ Row 67: white x 13 (13 squares)  

↗ Row 68: white x 12 (12 squares)  

↙ Row 69: white x 11 (11 squares)  

↗ Row 70: white x 10 (10 squares)  

↙ Row 71: white x 9 (9 squares)  

↗ Row 72: white x 8 (8 squares)  

↙ Row 73: white x 7 (7 squares)  

↗ Row 74: white x 6 (6 squares)  

↙ Row 75: white x 5 (5 squares)  

↗ Row 76: white x 4 (4 squares)  

↙ Row 77: white x 3 (3 squares)  

↗ Row 78: white x 2 (2 squares)  

↙ Row 79: white x 1 (1 square)  

Border

In each corner you will make (sc-ch 2-sc) and in the side of each square you will make 2 sc.

crochet octopus
crochet octopus

#4. Crochet Baby Blanket Whale Pattern

crochet whale

For my crochet baby blanket whale pattern, I used Red Heart Super Saver yarn in White, Black, Minty and Blue.

↙ Row 1: white x 1 (1 square)  

↗ Row 2: white x 2 (2 squares)  

↙ Row 3: white x 3 (3 squares)  

↗ Row 4: white x 4 (4 squares)  

↙ Row 5: white x 5 (5 squares)  

↗ Row 6: white x 6 (6 squares)  

↙ Row 7: white x 7 (7 squares)  

↗ Row 8: white x 8 (8 squares)  

↙ Row 9: white x 9 (9 squares)  

↗ Row 10: white x 10 (10 squares)  

↙ Row 11: white x 11 (11 squares)  

↗ Row 12: white x 12 (12 squares)  

↙ Row 13: white x 13 (13 squares)  

↗ Row 14: white x 14 (14 squares)  

↙ Row 15: white x 15 (15 squares)  

↗ Row 16: white x 16 (16 squares)  

↙ Row 17: white x 17 (17 squares)  

↗ Row 18: white x 18 (18 squares)  

↙ Row 19: white x 6, mint x 4, white x 9 (19 squares)  

↗ Row 20: white x 8, mint x 7, white x 5 (20 squares)  

↙ Row 21: white x 5, mint x 9, white x 7 (21 squares)  

↗ Row 22: white x 7, mint x 14, white x 1 (22 squares)  

↙ Row 23: white x 1, mint x 16, white x 6 (23 squares)  

↗ Row 24: white x 6, mint x 16, white x 2 (24 squares)  

↙ Row 25: white x 2, mint x 6, white x 2, mint x 9, white x 6 (25 squares)  

↗ Row 26: white x 6, mint x 9, white x 2, mint x 6, white x 3 (26 squares)  

↙ Row 27: white x 3, mint x 6, white x 3, mint x 9, white x 6 (27 squares)  

↗ Row 28: white x 6, mint x 9, white x 3, mint x 3, white x 1, mint x 2, white x 4 (28 squares)  

↙ Row 29: white x 7, mint x 3, white x 3, mint x 10, white x 6 (29 squares)  

↗ Row 30: white x 6, mint x 10, white x 3, mint x 4, white x 7 (30 squares)  

↙ Row 31: white x 8, mint x 3, white x 3, mint x 11, white x 6 (31 squares)  

↗ Row 32: white x 6, mint x 12, white x 2, mint x 4, white x 8 (32 squares)  

↙ Row 33: white x 9, mint x 3, white x 3, mint x 12, white x 6 (33 squares)  

↗ Row 34: white x 6, mint x 13, white x 15 (34 squares)  

↙ Row 35: white x 16, mint x 13, white x 6 (35 squares)  

↗ Row 36: white x 6, mint x 14, white x 16 (36 squares)  

↙ Row 37: white x 16, mint x 15, white x 6 (37 squares)  

↗ Row 38: white x 7, mint x 14, white x 17 (38 squares)  

↙ Row 39: white x 17, mint x 15, white x 7 (39 squares)  

↗ Row 40: white x 7, mint x 16, white x 17 (40 squares)  

Corner: Start decreasing on both ends  

crochet whale

↙ Row 41: white x 17, mint x 11, black x 2, mint x 2, white x 7 (39 squares)  

↗ Row 42: white x 6, mint x 2, black x 1, mint x 13, white x 16 (38 squares)  

↙ Row 43: white x 16, mint x 13, black x 1, mint x 1, white x 6 (37 squares)  

↗ Row 44: white x 5, mint x 1, black x 1, mint x 14, white x 15 (36 squares)  

↙ Row 45: white x 15, mint x 15, white x 5 (35 squares)  

↗ Row 46: white x 4, mint x 16, white x 14 (34 squares)  

↙ Row 47: white x 14, mint x 15, white x 4 (33 squares)  

↗ Row 48: white x 3, mint x 16, white x 13 (32 squares)  

↙ Row 49: white x 13, mint x 10, black x 1, mint x 4, white x 3 (31 squares)  

↗ Row 50: white x 2, mint x 4, black x 2, mint x 9, white x 13 (30 squares)  

↙ Row 51: white x 12, mint x 10, black x 1, mint x 4, white x 2 (29 squares)  

↗ Row 52: white x 2, mint x 14, white x 12 (28 squares)  

↙ Row 53: white x 12, mint x 13, white x 2 (27 squares)  

↗ Row 54: white x 1, mint x 13, white x 12 (26 squares)  

↙ Row 55: white x 12, mint x 12, white x 1 (25 squares)  

↗ Row 56: white x 1, mint x 11, white x 2, blue x 3, white x 7 (24 squares)  

↙ Row 57: white x 6, blue x 4, white x 2, mint x 10, white x 1 (23 squares)  

↗ Row 58: white x 1, mint x 9, white x 3, blue x 3, white x 6 (22 squares)  

↙ Row 59: white x 12, mint x 7, white x 2 (21 squares)  

↗ Row 60: white x 2, mint x 5, white x 3, blue x 1, white x 1, blue x 1, white x 7 (20 squares)  

↙ Row 61: white x 5, blue x 5, white x 9 (19 squares)  

↗ Row 62: white x 9, blue x 1, white x 1, blue x 3, white x 4 (18 squares)  

↙ Row 63: white x 3, blue x 3, white x 1, blue x 2, white x 8 (17 squares)  

↗ Row 64: white x 8, blue x 1, white x 1, blue x 3, white x 3 (16 squares)  

↙ Row 65: white x 2, blue x 3, white x 1, blue x 2, white x 7 (15 squares)  

↗ Row 66: white x 7, blue x 1, white x 2, blue x 2, white x 2 (14 squares)  

↙ Row 67: white x 13 (13 squares)  

↗ Row 68: white x 12 (12 squares)  

↙ Row 69: white x 11 (11 squares)  

↗ Row 70: white x 10 (10 squares)  

↙ Row 71: white x 9 (9 squares)  

↗ Row 72: white x 8 (8 squares)  

↙ Row 73: white x 7 (7 squares)  

↗ Row 74: white x 6 (6 squares)  

↙ Row 75: white x 5 (5 squares)  

↗ Row 76: white x 4 (4 squares)  

↙ Row 77: white x 3 (3 squares)  

↗ Row 78: white x 2 (2 squares)  

↙ Row 79: white x 1 (1 square)  

Border

In each corner you will make (sc-ch 2-sc) and in the side of each square you will make 2 sc.

crochet whale
crochet whale

#5. Crochet Baby Blanket Seahorse Pattern

crochet seahorse

For my crochet baby blanket seahorse pattern, I used Red Heart Super Saver yarn in White, Black, Pumpkin, Pretty n Pink and Pale Yellow.

↙ Row 1: white x 1 (1 stitch)  

↗ Row 2: white x 2 (2 stitches)  

↙ Row 3: white x 3 (3 stitches)  

↗ Row 4: white x 4 (4 stitches)  

↙ Row 5: white x 5 (5 stitches)  

↗ Row 6: white x 6 (6 stitches)  

↙ Row 7: white x 7 (7 stitches)  

↗ Row 8: white x 8 (8 stitches)  

↙ Row 9: white x 9 (9 stitches)  

↗ Row 10: white x 10 (10 stitches)  

↙ Row 11: white x 11 (11 stitches)  

↗ Row 12: white x 12 (12 stitches)  

↙ Row 13: white x 13 (13 stitches)  

↗ Row 14: white x 14 (14 stitches)  

↙ Row 15: white x 15 (15 stitches)  

↗ Row 16: white x 16 (16 stitches)  

↙ Row 17: white x 17 (17 stitches)  

↗ Row 18: white x 18 (18 stitches)  

↙ Row 19: white x 19 (19 stitches)  

↗ Row 20: white x 20 (20 stitches)  

↙ Row 21: white x 17, orange x 1, white x 3 (21 stitches)  

↗ Row 22: white x 2, orange x 4, white x 16 (22 stitches)  

↙ Row 23: white x 16, orange x 5, white x 2 (23 stitches)  

↗ Row 24: white x 2, orange x 6, white x 16 (24 stitches)  

↙ Row 25: white x 16, orange x 3, white x 2, orange x 2, white x 2 (25 stitches)  

↗ Row 26: white x 2, orange x 2, white x 3, orange x 3, white x 16 (26 stitches)  

↙ Row 27: white x 16, pink x 1, orange x 2, white x 4, orange x 1, white x 3 (27 stitches)  

↗ Row 28: white x 3, orange x 3, white x 2, orange x 3, pink x 1, white x 16 (28 stitches)  

↙ Row 29: white x 17, orange x 3, yellow x 1, white x 1, orange x 3, white x 4 (29 stitches)  

↗ Row 30: white x 5, orange x 2, white x 1, yellow x 1, orange x 3, pink x 1, white x 17 (30 stitches)  

↙ Row 31: white x 17, pink x 1, orange x 3, yellow x 1, white x 9 (31 stitches)  

↗ Row 32: white x 9, yellow x 1, orange x 4, white x 18 (32 stitches)  

↙ Row 33: white x 18, pink x 1, orange x 3, yellow x 2, white x 9 (33 stitches)  

↗ Row 34: white x 10, yellow x 2, orange x 3, pink x 1, white x 18 (34 stitches)  

↙ Row 35: white x 18, pink x 1, orange x 3, yellow x 3, white x 10 (35 stitches)  

↗ Row 36: white x 11, yellow x 3, orange x 3, pink x 1, white x 18 (36 stitches)  

↙ Row 37: white x 17, pink x 2, orange x 4, yellow x 3, white x 11 (37 stitches)  

↗ Row 38: white x 12, yellow x 3, orange x 5, pink x 3, white x 1, pink x 1, white x 13 (38 stitches)  

↙ Row 39: white x 13, pink x 5, orange x 5, yellow x 4, white x 12 (39 stitches)  

↗ Row 40: white x 13, yellow x 4, orange x 7, pink x 5, white x 11 (40 stitches)  

Corner: Start decreasing on both ends  

crochet seahorse

↙ Row 41: white x 11, pink x 2, orange x 9, yellow x 4, white x 13 (39 stitches)  

↗ Row 42: white x 13, yellow x 4, orange x 9, pink x 2, white x 10 (38 stitches)  

↙ Row 43: white x 10, pink x 1, orange x 9, yellow x 4, white x 13 (37 stitches)  

↗ Row 44: white x 13, yellow x 5, orange x 8, pink x 3, white x 7 (36 stitches)  

↙ Row 45: white x 7, pink x 2, orange x 8, yellow x 5, white x 13 (35 stitches)  

↗ Row 46: white x 18, orange x 8, pink x 2, white x 6 (34 stitches)  

↙ Row 47: white x 6, pink x 1, orange x 9, white x 17 (33 stitches)  

↗ Row 48: white x 16, orange x 10, pink x 1, white x 5 (32 stitches)  

↙ Row 49: white x 4, pink x 2, orange x 10, white x 15 (31 stitches)  

↗ Row 50: white x 15, orange x 10, pink x 2, white x 3 (30 stitches)  

↙ Row 51: white x 3, pink x 2, orange x 10, white x 14 (29 stitches)  

↗ Row 52: white x 14, orange x 3, white x 1, orange x 5, pink x 2, white x 3 (28 stitches)  

↙ Row 53: white x 3, pink x 1, orange x 5, white x 2, orange x 3, white x 13 (27 stitches)  

↗ Row 54: white x 13, orange x 2, white x 1, black x 1, white x 1, orange x 4, pink x 2, white x 2 (26 stitches)  

↙ Row 55: white x 2, pink x 2, orange x 4, white x 2, orange x 3, white x 12 (25 stitches)  

↗ Row 56: white x 10, orange x 5, white x 1, orange x 4, pink x 3, white x 1 (24 stitches)  

↙ Row 57: white x 3, pink x 1, orange x 6, white x 1, orange x 2, white x 10 (23 stitches)  

↗ Row 58: white x 10, orange x 1, white x 2, orange x 5, pink x 2, white x 2 (22 stitches)  

↙ Row 59: white x 2, pink x 2, orange x 4, white x 2, orange x 1, white x 10 (21 stitches)  

↗ Row 60: white x 13, orange x 3, pink x 3, white x 1 (20 stitches)  

↙ Row 61: white x 19 (19 stitches)  

↗ Row 62: white x 18 (18 stitches)  

↙ Row 63: white x 17 (17 stitches)  

↗ Row 64: white x 16 (16 stitches)  

↙ Row 65: white x 15 (15 stitches)  

↗ Row 66: white x 14 (14 stitches)  

↙ Row 67: white x 13 (13 stitches)  

↗ Row 68: white x 12 (12 stitches)  

↙ Row 69: white x 11 (11 stitches)  

↗ Row 70: white x 10 (10 stitches)  

↙ Row 71: white x 9 (9 stitches)  

↗ Row 72: white x 8 (8 stitches)  

↙ Row 73: white x 7 (7 stitches)  

↗ Row 74: white x 6 (6 stitches)  

↙ Row 75: white x 5 (5 stitches)  

↗ Row 76: white x 4 (4 stitches)  

↙ Row 77: white x 3 (3 stitches)  

↗ Row 78: white x 2 (2 stitches)  

↙ Row 79: white x 1 (1 stitch)  

Border

In each corner you will make (sc-ch 2-sc) and in the side of each square you will make 2 sc.

crochet seahorse
crochet seahorse

#6. Crochet Baby Blanket Fish Pattern

crochet fish

For my crochet baby blanket fish pattern, I used Red Heart Super Saver yarn in White, Black, Spring GreenPale Yellow and Blue.

↙ Row 1: white x 1 (1 square)  

↗ Row 2: white x 2 (2 squares)  

↙ Row 3: white x 3 (3 squares)  

↗ Row 4: white x 4 (4 squares)  

↙ Row 5: white x 5 (5 squares)  

↗ Row 6: white x 6 (6 squares)  

↙ Row 7: white x 7 (7 squares)  

↗ Row 8: white x 8 (8 squares)  

↙ Row 9: white x 9 (9 squares)  

↗ Row 10: white x 10 (10 squares)  

↙ Row 11: white x 11 (11 squares)  

↗ Row 12: white x 12 (12 squares)  

↙ Row 13: white x 13 (13 squares)  

↗ Row 14: white x 14 (14 squares)  

↙ Row 15: white x 13, green x 1, white x 1 (15 squares)  

↗ Row 16: white x 1, green x 1, white x 14 (16 squares)  

↙ Row 17: white x 6, blue x 1, white x 7, green x 2, white x 1 (17 squares)  

↗ Row 18: white x 2, green x 1, white x 8, blue x 1, white x 6 (18 squares)  

↙ Row 19: white x 6, blue x 2, white x 7, green x 2, white x 2 (19 squares)  

↗ Row 20: white x 2, green x 3, white x 7, blue x 2, white x 6 (20 squares)  

↙ Row 21: white x 7, blue x 2, white x 7, green x 3, white x 2 (21 squares)  

↗ Row 22: white x 2, green x 4, white x 6, blue x 3, white x 7 (22 squares)  

↙ Row 23: white x 7, blue x 4, white x 4, green x 4, yellow x 2, white x 2 (23 squares)  

↗ Row 24: white x 2, yellow x 3, green x 8, blue x 4, white x 7 (24 squares)  

↙ Row 25: white x 6, blue x 4, green x 9, yellow x 4, white x 2 (25 squares)  

↗ Row 26: white x 3, yellow x 4, green x 9, blue x 4, white x 6 (26 squares)  

↙ Row 27: white x 6, blue x 4, green x 9, yellow x 4, green x 1, white x 3 (27 squares)  

↗ Row 28: white x 3, green x 3, yellow x 3, green x 8, blue x 5, white x 6 (28 squares)  

↙ Row 29: white x 8, blue x 2, white x 1, green x 7, yellow x 4, green x 4, white x 3 (29 squares)  

↗ Row 30: white x 4, green x 4, yellow x 4, green x 7, white x 11 (30 squares)  

↙ Row 31: white x 12, green x 6, yellow x 2, blue x 1, yellow x 1, green x 5, white x 4 (31 squares)  

↗ Row 32: white x 4, green x 6, blue x 2, yellow x 2, green x 6, white x 12 (32 squares)  

↙ Row 33: white x 13, green x 5, yellow x 2, blue x 3, green x 5, white x 5 (33 squares)  

↗ Row 34: white x 5, green x 6, blue x 3, yellow x 2, green x 5, white x 13 (34 squares)  

↙ Row 35: white x 13, green x 5, yellow x 2, blue x 4, green x 6, white x 5 (35 squares)  

↗ Row 36: white x 6, green x 5, blue x 5, yellow x 2, green x 4, white x 14 (36 squares)  

↙ Row 37: white x 14, green x 3, yellow x 3, blue x 5, green x 6, white x 6 (37 squares)  

↗ Row 38: white x 7, green x 5, blue x 6, yellow x 3, green x 3, white x 14 (38 squares)  

↙ Row 39: white x 14, green x 2, yellow x 5, blue x 5, green x 6, white x 7 (39 squares)  

↗ Row 40: white x 8, green x 6, blue x 3, green x 1, yellow x 9, white x 13 (40 squares)  

Corner: Start decreasing on both ends  

crochet fish

↙ Row 41: white x 6, yellow x 2, white x 4, yellow x 9, green x 3, blue x 1, green x 7, white x 7 (39 squares)  

↗ Row 42: white x 7, yellow x 3, green x 8, yellow x 17, white x 3 (38 squares)  

↙ Row 43: white x 2, yellow x 16, green x 8, yellow x 5, white x 6 (37 squares)  

↗ Row 44: white x 6, yellow x 5, green x 8, yellow x 12, white x 5 (36 squares)  

↙ Row 45: white x 6, yellow x 10, green x 8, yellow x 5, white x 6 (35 squares)  

↗ Row 46: white x 5, yellow x 6, green x 9, yellow x 8, white x 6 (34 squares)  

↙ Row 47: white x 7, yellow x 4, green x 11, white x 1, yellow x 5, white x 5 (33 squares)  

↗ Row 48: white x 4, yellow x 5, white x 2, green x 14, white x 7 (32 squares)  

↙ Row 49: white x 8, green x 12, white x 1, black x 1, white x 1, yellow x 4, white x 4 (31 squares)  

↗ Row 50: white x 4, yellow x 4, white x 1, black x 1, white x 1, green x 10, white x 9 (30 squares)  

↙ Row 51: white x 10, green x 9, white x 2, yellow x 4, white x 4 (29 squares)  

↗ Row 52: white x 4, yellow x 4, white x 1, green x 8, white x 11 (28 squares)  

↙ Row 53: white x 12, green x 7, yellow x 2, white x 6 (27 squares)  

↗ Row 54: white x 7, green x 6, white x 13 (26 squares)  

↙ Row 55: white x 25 (25 squares)  

↗ Row 56: white x 24 (24 squares)  

↙ Row 57: white x 23 (23 squares)  

↗ Row 58: white x 22 (22 squares)  

↙ Row 59: white x 21 (21 squares)  

↗ Row 60: white x 20 (20 squares)  

↙ Row 61: white x 19 (19 squares)  

↗ Row 62: white x 18 (18 squares)  

↙ Row 63: white x 17 (17 squares)  

↗ Row 64: white x 16 (16 squares)  

↙ Row 65: white x 15 (15 squares)  

↗ Row 66: white x 14 (14 squares)  

↙ Row 67: white x 13 (13 squares)  

↗ Row 68: white x 12 (12 squares)  

↙ Row 69: white x 11 (11 squares)  

↗ Row 70: white x 10 (10 squares)  

↙ Row 71: white x 9 (9 squares)  

↗ Row 72: white x 8 (8 squares)  

↙ Row 73: white x 7 (7 squares)  

↗ Row 74: white x 6 (6 squares)  

↙ Row 75: white x 5 (5 squares)  

↗ Row 76: white x 4 (4 squares)  

↙ Row 77: white x 3 (3 squares)  

↗ Row 78: white x 2 (2 squares)  

↙ Row 79: white x 1 (1 square)  

Border

In each corner you will make (sc-ch 2-sc) and in the side of each square you will make 2 sc.

crochet fish
crochet fish

STEP 2: Join the Crochet Baby Blanket Squares

After you make each of the c2c crochet animals, decide how you to arrange them. Make sure your crochet animals are facing the right way!

Line up the single crochet stitches from the borders. You can use locking stitch markers to keep them lined up.

Sew the two squares in each row together, then sew the three rows together.

Weave in all of your loose ends.

Crochet Sea Animals

STEP 3: Add a Crochet Baby Blanket Border

Start with blue yarn
Rnd 1: Ch 2, hdc in each stitch, in each corner make (hdc, ch 2, hdc), join

Switch to minty yarn
Rnd 2: Ch 2, *skip a st, 4 dc in next st, skip a st, slip st in next st* (repeat between the * all the way around), join, fasten off and weave in ends.

crochet blanket border
crochet blanket border
Crochet Sea Animals Blanket

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