Crochet Mermaid Tail Pattern Free | Great for Baby Photoshoots!

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Looking for a fun and adorable way to dress up your little one? This free Crochet Mermaid Tail pattern for babies is the perfect choice! This charming pattern features a whimsical mermaid tail design that’s sure to make a splash. The pattern is easy to follow, making it a great project for crocheters of all levels, and is written specifically for baby sizes.

Whether you’re looking to create a fun photo prop or a cozy blanket for your little one to snuggle up in, this mermaid tail pattern is the perfect choice. You can customize it with your own choice of colors and yarns to create a truly unique and personalized look.

And don’t worry if you’re new to crochet – this pattern includes detailed instructions and helpful tips to guide you through each step of the process. You’ll be a crochet pro in no time!

So grab your crochet hook and dive into the world of mermaids with this free crochet mermaid tail pattern. Your little one is sure to love this adorable and cozy accessory!

Be sure to check out my many other free crochet patterns for babies and children!

While crochet costumes can be adorable and fun for babies to wear, it is important to never leave a baby unattended while wearing any type of costume, including those made from crochet. Always use caution and common sense when dressing up your baby.

Etsy Shop

This pattern is also available as an ad-free PDF pattern in my Etsy Shop.

Project Materials

Skill Level

Advanced Beginner. Projects may include simple stitch patterns, color work, and/or shaping.

Crochet Mermaid Tail Size Chart

Size	Chest	Waist	Hips
0-3 Months	16 inches	18 inches	19 inches
3-6 Months	17 inches	19 inches	20 inches

Baby Mermaid Tail Size Chart

Gauge

12 tc sts and 6 rows= 4″

Pattern Notes

This pattern is written for two lengths: waist to fin length and chest to fin length.
This pattern starts with a magic circle (also known as a magic ring or adjustable ring). If you are a beginner crocheter, check out my magic circle tutorial.
Leave a long yarn tail for weaving in when you make your magic circle.
The beginning of each round starts with a chain. This chain does not count as your first stitch.
At the end of each round, you’ll join your yarn with a slip stitch (sl st) to the first stitch made in that round.
You are crocheting in the round.
Mermaid tail is worked from the bottom up to the waist.
Instructions between two asterisks (*) should be repeated for the remainder of the round.
For the headband, go to my Starfish Appliqué Pattern.
If you prefer to purchase a printable copy of this pattern, visit the listing in my Etsy Shop.

Abbreviations

ch = chain
chs = chains
st = stitch
sts = stitches
rnd = round
rnds = rounds
tc = treble crochet
tc inc =treble crochet increase
sc = single crochet
dc = double crochet

Crochet Stitches & Techniques

Chain (ch)

Start by making a slip knot on your crochet hook.
Hold the hook in your right hand (or left hand, if you’re left-handed) and the yarn in your left hand. With the hook, catch the yarn and pull it through the loop on the hook. This creates one chain stitch.
Continue making chain stitches by repeating step 2.

Slip Stitch (sl st)

Insert hook into next stitch.
Yarn over and pull through the stitch and through the loop on your hook.

Single Crochet (sc)

Insert hook in next stitch.
Yarn over and pull up a loop. You will have 2 loops on your hook.
Yarn over and pull through both loops.

Double Crochet (dc)

Yarn over & insert hook in next stitch.
Yarn over and pull up a loop. You will have 3 loops on your hook.
Yarn over and pull through 2 loops. You will have 2 loops on your hook.
Yarn over and pull through remaining 2 loops on your hook.

Treble Crochet (tc)

Yarn over twice & insert hook in next stitch.
Yarn over & pull up a loop. You will have 4 loops on the hook.
Yarn over and pull through 2 loops. You will have 3 loops on your hook.
Yarn over and pull through 2 loops. You will have 2 loops on your hook.
Yarn over and pull through remaining 2 loops on your hook.

Treble Crochet Increase (tc inc)

Yarn over twice & insert hook in next stitch.
Yarn over & pull up a loop. You will have 4 loops on the hook.
Yarn over and pull through 2 loops. You will have 3 loops on your hook.
Yarn over and pull through 2 loops. You will have 2 loops on your hook.
Yarn over and pull through remaining 2 loops on your hook
Repeat steps 1-5 in the same stitch.

Crochet Mermaid Tail Pattern: 0-3 Months

Rnd 1: Magic circle, 12 tc, join with a slip stitch to the first st (12 stitches)

Rnd 2: Ch 3, *tc inc in 3 sts, tc in 3 sts*, join (18 stitches)

Rnd 3: Ch 3, *tc inc in 2 sts, tc in 7 sts*, join (22 stitches)

Rnd 4: Ch 3, *tc inc in 2 sts, tc in 9 sts*, join (26 stitches)

Rnd 5: Ch 3, *tc inc in 2 sts, tc in 11 sts*, join (30 stitches)

Rnd 6: Ch 3, *tc inc in 2 sts, tc in 13 sts*, join (34 stitches)

Rnd 7: Ch 3, *tc inc in 3 sts, tc in 14 sts*, join (40 stitches)

Rnd 8: Ch 3, *tc inc in 3 sts, tc in 17 sts*, join (46 stitches)

Rnd 9: Ch 3, *tc inc in 3 sts, tc in 20 sts*, join (52 stitches)

Waist to Fin Length Instructions

Rnds 10- 20: Ch 3, tc in each st, join (52 stitches)

Rnd 21: Ch 1, sc in each st, join and finish off

Chest to Fin Length Instructions

Rnds 10- 27: Ch 3, tc in each st, join (52 stitches)

Rnd 28: Ch 1, sc in each st, join and finish off

Scroll down for the fin pattern.

Crochet Mermaid Tail Pattern: 3-6 Months