Landscape featured image showing a green crochet Frankenstein hat with black hair, mismatched eyes, a stitched scar, ear flaps, and braided ties beside text reading “Frankenstein Hat Crochet Pattern,” “Free Pattern,” and “Easy Halloween Project.”

Crochet Frankenstein hat pattern

I’m super excited to share my crochet Frankenstein hat pattern with you! This fun monster hat is perfect for Halloween and the spooky season. Designed for all sizes, from baby to adult, it’s a great way to add some creepy charm to your holiday outfits.

Crochet Frankenstein Hat Pattern Information

Here’s a quick overview of the materials, sizing, gauge, and pattern notes before you begin.

Skill Level

Advanced beginner. This crochet hat pattern uses basic stitches in basic form and in simple repeats in rounds. It has some color changes.

Materials Needed

  • Crochet hook size: I-9 5.5 mm
  • Yarn: Worsted weight yarn #4 in black, green, and white.
  • Yarn needle: Use this to weave in your ends.
  • Scissors: Use scissors to fasten off your yarn.
  • Stitch marker(s): Optional. Use these to help keep track of your stitches. 

Size Chart

Hat SizeCrownCircumferenceHeight
0-3 Months4.5 inches13-14 inches5 inches
3-6 Months5 inches14-15 inches5.5 inches
6-12 Months5.5 inches16-17 inches6.25 inches
Toddler6 inches18-19 inches6.75 inches
Child6.5 inches19-20 inches7 inches
Adult7 inches20-23 inches7.75 inches
Crochet Hat Size Chart

See my crochet hat sizing guide for full details and size charts.

Gauge

15 stitches = 4 inches and 7 rounds = 3 inches

Learn how to check crochet gauge before you begin so you can adjust your hook size if needed.

Crochet abbreviations

  • dc = double crochet
  • sc = single crochet stitch
  • sc2tog = single crochet decrease
  • ch/chs = chain/chains
  • st/sts = stitch/stitches
  • sl st = slip stitch
  • rnd/rnds = round/rounds
  • rem = remaining

Pattern Notes

  • The chain at the beginning of each round does not count as your first stitch. 
  • Join each round with a slip stitch to the first stitch made in that round. 
  • Repeat instructions between the asterisks (*) for the rest of the round.
  • You are crocheting in the round from the top of the hat down.
  • The pattern is written in US terms.

Magic Circle Alternative

If you’re not comfortable with using a magic circle, you can use an alternative method to make round 1 of the beanie. This method is just as effective and might be easier for beginners.

Round 1: Chain 4, make 11 dc in the 4th ch from the hook, join (11 stitches)

Crochet Frankenstein Hat Pattern Instructions

Start with black yarn.

0-3 Month Baby Crochet Frankenstein Hat Pattern

Rnd 1: Magic circle, ch 2, 11 dc, join (11 stitches)

Rnd 2: Ch 2, 2 dc in each st, join (22 stitches)

Rnd 3: Ch 2, *2 dc, dc in next st*, join (33 stitches)

Switch to green yarn. 

Rnd 4: Ch 2, *2 dc, dc in next 2 sts*, join (44 stitches)

Rnd 5: Ch 2, *2 dc, dc in next 10 sts*, join (48 stitches)

Rnd 6: Ch 2, dc in each st, join (48 stitches)

Rnds 7– 13: Repeat round 6 (48 stitches)

3-6 Month Baby Crochet Frankenstein Hat Pattern

Rnd 1: Magic circle, ch 2, 11 dc, join (11 stitches)

Rnd 2: Ch 2, 2 dc in each st, join (22 stitches)

Rnd 3: Ch 2, *2 dc, dc in next st*, join (33 stitches)

Rnd 4: Ch 2, *2 dc, dc in next 2 sts*, join (44 stitches)

Switch to green yarn. 

Rnd 5: Ch 2, *2 dc, dc in next 10 sts*, join (48 stitches)

Rnd 6: Ch 2, *2 dc, dc in next 11 sts*, join (52 stitches)

Rnd 7: Ch 2, dc in each st, join (52 stitches)

Rnds 8– 15: Repeat round 7 (52 stitches)

6-12 Month Baby Crochet Frankenstein Hat Pattern

Rnd 1: Magic circle, ch 2, 11 dc, join (11 stitches)

Rnd 2: Ch 2, 2 dc in each st, join (22 stitches)

Rnd 3: Ch 2, *2 dc, dc in next st*, join (33 stitches)

Rnd 4: Ch 2, *2 dc, dc in next 2 sts*, join (44 stitches)

Rnd 5: Ch 2, *2 dc, dc in next 10 sts*, join (48 stitches)

Switch to green yarn. 

Rnd 6: Ch 2, *2 dc, dc in next 11 sts*, join (52 stitches)

Rnd 7: Ch 2, *2 dc, dc in next 12 sts*, join (56 stitches)

Rnd 8: Ch 2, dc in each st, join (56 stitches)

Rnds 9– 16: Repeat round 8 (56 stitches)

Toddler Crochet Frankenstein Hat Pattern

Rnd 1: Magic circle, ch 2, 11 dc, join (11 stitches)

Rnd 2: Ch 2, 2 dc in each st, join (22 stitches)

Rnd 3: Ch 2, *2 dc, dc in next st*, join (33 stitches)

Rnd 4: Ch 2, *2 dc, dc in next 2 sts*, join (44 stitches)

Rnd 5: Ch 2, *2 dc, dc in next 10 sts*, join (48 stitches)

Rnd 6: Ch 2, *2 dc, dc in next 11 sts*, join (52 stitches)

Switch to green yarn. 

Rnd 7: Ch 2, *2 dc, dc in next 12 sts*, join (56 stitches)

Rnd 8: Ch 2, *2 dc, dc in next 13 sts*, join (60 stitches)

Rnd 9: Ch 2, dc in each st, join (60 stitches)

Rnds 10– 18: Repeat round 9 (60 stitches)

Child Crochet Frankenstein Hat Pattern

Rnd 1: Magic circle, ch 2, 11 dc, join (11 stitches)

Rnd 2: Ch 2, 2 dc in each st, join (22 stitches)

Rnd 3: Ch 2, *2 dc, dc in next st*, join (33 stitches)

Rnd 4: Ch 2, *2 dc, dc in next 2 sts*, join (44 stitches)

Rnd 5: Ch 2, *2 dc, dc in next 10 sts*, join (48 stitches)

Rnd 6: Ch 2, *2 dc, dc in next 11 sts*, join (52 stitches)

Rnd 7: Ch 2, *2 dc, dc in next 12 sts*, join (56 stitches)

Switch to green yarn. 

Rnd 8: Ch 2, *2 dc, dc in next 13 sts*, join (60 stitches)

Rnd 9: Ch 2, *2 dc, dc in next 14 sts*, join (64 stitches)

Rnd 10: Ch 2, dc in each st, join (64 stitches)

Rnds 11– 19: Repeat round 10 (64 stitches)

Adult Crochet Frankenstein Hat Pattern

Rnd 1: Magic circle, ch 2, 11 dc, join (11 stitches)

Rnd 2: Ch 2, 2 dc in each st, join (22 stitches)

Rnd 3: Ch 2, *2 dc, dc in next st*, join (33 stitches)

Rnd 4: Ch 2, *2 dc, dc in next 2 sts*, join (44 stitches)

Rnd 5: Ch 2, *2 dc, dc in next 10 sts*, join (48 stitches)

Rnd 6: Ch 2, *2 dc, dc in next 11 sts*, join (52 stitches)

Rnd 7: Ch 2, *2 dc, dc in next 12 sts*, join (56 stitches)

Rnd 8: Ch 2, *2 dc, dc in next 13 sts*, join (60 stitches)

Switch to green yarn. 

Rnd 9: Ch 2, *2 dc, dc in next 14 sts*, join (64 stitches)

Rnd 10: Ch 2, *2 dc, dc in next 15 sts*, join (68 stitches)

Rnd 11: Ch 2, dc in each st, join (68 stitches)

Rnds 12– 21: Repeat round 11 (68 stitches)

Earflaps for the Crochet Frankenstein Hat Pattern

Begin the first earflap where you ended the last round of your hat. Then, refer to the chart below for placement of the second earflap. 

Repeat the instructions for the second earflap. Then single crochet around the entire hat and both earflaps.

SizeFront of HatBack of Hat
0-3 Monthsleave 16 stitches in frontleave 12 stitches in back
3-6 Monthsleave 16 stitches in frontleave 12 stitches in back
6-12 Monthsleave 18 stitches in frontleave 14 stitches in back
Toddlerleave 18 stitches in frontleave 14 stitches in back
Childleave 20 stitches in frontleave 16 stitches in back
Adultleave 22 stitches in frontleave 18 stitches in back

0-3 Months Earflaps

Row 1: Ch 1, sc in 10 sts, turn (10 stitches)

Row 2: Ch 1, sc2tog, sc in 6 sts, sc2tog, turn (8 stitches)

Row 3: Ch 1, sc in each st, turn (8 stitches)

Row 4: Ch 1, sc2tog, sc in 4 sts, sc2tog, turn (6 stitches)

Row 5: Ch 1, sc in each st, turn (6 stitches)

Row 6: Ch 1, sc2tog, sc in 2 sts, sc2tog, turn (4 stitches)

Row 7: Ch 1, sc in each st, turn (4 stitches)

Row 8: Ch 1, sc2tog, sc2tog, turn (2 stitches)

Row 9: Ch 1, sc2tog (1 stitch)

3-6 and 6-12 Months Earflaps

Row 1: Ch 1, sc in 12 sts, turn (12 stitches)

Row 2: Ch 1, sc2tog, sc in 8 sts, sc2tog, turn (10 stitches)

Row 3: Ch 1, sc in each st, turn (10 stitches)

Row 4: Ch 1, sc2tog, sc in 6 sts, sc2tog, turn (8 stitches)

Row 5: Ch 1, sc in each st, turn (8 stitches)

Row 6: Ch 1, sc2tog, sc in 4 sts, sc2tog, turn (6 stitches)

Row 7: Ch 1, sc in each st, turn (6 stitches)

Row 8: Ch 1, sc2tog, sc in 2 sts, sc2tog, turn (4 stitches)

Row 9: Ch 1, sc in each st, turn (4 stitches)

Row 10: Ch 1, sc2tog, sc2tog, turn (2 stitches)

Row 11: Ch 1, sc2tog (1 stitch)

Toddler, Child, & Adult Earflaps

Row 1: Ch 1, sc in 14, turn (14 stitches)

Row 2: Ch 1,sc2tog, sc in 10 sts, sc2tog, turn (12 stitches)

Row 3: Ch 1, sc in each st, turn (12 stitches)

Row 4: Ch 1, sc2tog, sc in 8 sts, sc2tog, turn (10 stitches)

Row 5: Ch 1, sc in each st, turn (10 stitches)

Row 6: Ch 1, sc2tog, sc in 6 sts, sc2tog, turn (8 stitches)

Row 7: Ch 1, sc in each st, turn (8 stitches)

Row 8: Ch 1, sc2tog, sc in 4 sts, sc2tog, turn (6 stitches)

Row 9: Ch 1, sc in each st, turn (6 stitches)

Row 10: Ch 1, sc2tog, sc in 2 sts, sc2tog, turn (4 stitches)

Row 11: Ch 1, sc in each st, turn (4 stitches)

Row 12: Ch 1, sc2tog, sc2tog, turn (2 stitches)

Row 13: Ch 1, sc2tog (1 stitch)

Braids for the Crochet Frankenstein Hat Pattern

Cut fifteen 30” strands of yarn for each braid.

  1. Fold the strands in half and pass the folded loop through the bottom of the ear flap.
  2. Pass the strand ends through the loop and pull tight to form a knot.
  3. Divide into three sections and braid.

Eyes Pattern

Small Eye: Make rounds 1-2

Large Eye: Make rounds 1-3

Rnd 1: Magic circle, ch 2, 9 dc, join (9 stitches)

Switch to white  yarn.

Rnd 2: Ch 2, 2 dc in each st, join (18 stitches)

Rnd 3: Ch 2, *2 dc, dc in next st*, join and fasten off (27 stitches)

Sew the eyes to the hat.

Frankenstein Hair Instructions

Stitch the hair and stitches using black yarn.

Finishing the Crochet Frankenstein Hat Pattern

Weave in the ends.

Lovable Loops free Crochet Frankenstein Hat Pattern

Looking for More Free Crochet Patterns?

Love making cozy hats? Explore even more free crochet hat and beanie patterns that are perfect for every season and style. From classic beanies and warm winter hats to playful designs for kids and trendy accessories for adults, you’ll find inspiration for your next project here.

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📌 Don’t forget to pin this pattern for later!
Happy crocheting! 🧶
— Melissa