Crochet Frankenstein hat pattern

Create a fun Halloween accessory with this free crochet Frankenstein hat pattern. This playful beanie features classic Frankenstein-inspired details and is perfect for Halloween costumes, trick-or-treating, fall events, and festive photos.

The pattern includes six sizes from baby to adult, making this crochet Frankenstein hat a fun choice for kids, grown-ups, matching family hats, and handmade Halloween gifts.

Why you’ll love this pattern

• Perfect for Halloween — the Frankenstein design is a fun choice for costumes, trick-or-treating, and fall events.
• Six sizes included — make one for babies, toddlers, kids, or adults.
• Easy color changes — simple black and green sections create the classic Frankenstein look.
• Fun finishing details — ear flaps, braids, crochet eyes, stitched hair, and facial details give the hat lots of character.
• Great for gifts — this crochet Frankenstein hat makes a playful handmade gift for Halloween.

Prefer a printable version?

You can purchase the ad-free PDF of this Crochet Frankenstein Hat Pattern in my Etsy shop. The downloadable pattern is easy to save, print, and keep with your crochet projects.

Get the Crochet Frankenstein Hat PDF on Etsy

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 Frankenstein hat uses basic stitches and simple repeats worked in the round. The pattern also includes a few color changes to create the black hair and green face sections.

Materials Needed

• Crochet hook: I-9 (5.5 mm)
• Yarn: Worsted weight yarn (#4) in black, green, and white
• Yarn needle: For weaving in ends and stitching the facial details
• Scissors: For cutting yarn
• Stitch markers: Optional, but helpful for keeping track of your stitches

Size Chart

This crochet Frankenstein hat pattern includes six sizes from baby to adult. Use the chart below to choose the best size based on crown diameter, head circumference, and finished hat height.

Hat Size	Crown	Circumference	Height
0-3 Months	4.5 inches	13-14 inches	5 inches
3-6 Months	5 inches	14-15 inches	5.5 inches
6-12 Months	5.5 inches	16-17 inches	6.25 inches
Toddler	6 inches	18-19 inches	6.75 inches
Child	6.5 inches	19-20 inches	7 inches
Adult	7 inches	20-23 inches	7.75 inches

Need help choosing a size? See my crochet hat sizing guide for full measurements and fitting tips.

Gauge

15 stitches = 4 inches and 7 rounds = 3 inches

Check your gauge before you begin so your finished crochet Frankenstein hat matches the intended size. Learn how to check crochet gauge and 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 prefer not to use a magic circle, you can start the first round with a short chain instead.

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

Free crochet Frankenstein hat pattern instructions

Using black yarn, follow the instructions below to crochet your Frankenstein hat in any of the six included sizes. The hat is worked from the top down in the round, with simple color changes to create the black hair and green face.

0-3 months

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 months

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 months

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

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

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

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)

How to add ear flaps to the Frankenstein hat

Begin the first ear flap where you finished the last round of the hat. Use the chart below to place the second ear flap evenly on the opposite side.

After completing both ear flaps, single crochet around the entire hat and both ear flaps for a finished edge.

Size	Front of Hat	Back of Hat
0-3 Months	leave 16 stitches in front	leave 12 stitches in back
3-6 Months	leave 16 stitches in front	leave 12 stitches in back
6-12 Months	leave 18 stitches in front	leave 14 stitches in back
Toddler	leave 18 stitches in front	leave 14 stitches in back
Child	leave 20 stitches in front	leave 16 stitches in back
Adult	leave 22 stitches in front	leave 18 stitches in back

0-3 months ear flaps

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 ear flaps

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, and adult ear flaps

Row 1: Ch 1, sc in 14 sts, 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)

How to add braids to the Frankenstein hat

Cut fifteen 30-inch 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 the strands into three sections and braid.

How to crochet the eyes

• Small eye: Work Rounds 1–2
• Large eye: Work Rounds 1–3
• Yarn: Black and white
• Crochet hook: I-9 (5.5 mm)

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 onto the front of the hat, positioning the small and large eye to create the Frankenstein face.

How to add the Frankenstein hair and stitches

Using black yarn and a yarn needle, stitch the hair across the top of the green section of the hat. Add the stitched facial details to complete the Frankenstein look.

Finishing your crochet Frankenstein hat

Fasten off and weave in all remaining ends. Once the eyes, hair, and stitched details are in place, your crochet Frankenstein hat is ready to wear for Halloween.

Frequently asked questions

Q: Is this crochet Frankenstein hat pattern beginner-friendly?
A: This pattern is best for advanced beginners. It uses basic crochet stitches and simple repeats worked in the round, along with a few color changes.

Q: What yarn should I use for a crochet Frankenstein hat?
A: Use worsted weight yarn (#4) in black, green, and white.

Q: What sizes are included in this crochet Frankenstein hat pattern?
A: The pattern includes six sizes: 0–3 months, 3–6 months, 6–12 months, toddler, child, and adult.

Q: Is this crochet Frankenstein hat good for Halloween costumes?
A: Yes. The Frankenstein design makes this hat a fun choice for Halloween costumes, trick-or-treating, fall events, and festive photos.

Q: Is there a printable version of the crochet Frankenstein hat pattern?
A: Yes. You can purchase the ad-free printable PDF version of this crochet Frankenstein hat pattern in my Etsy shop.

More free crochet hat patterns

Looking for more hats to make? Browse my free crochet hat and beanie patterns for more designs for babies, kids, and adults. You’ll find classic beanies, seasonal hats, costume styles, and playful character-inspired patterns for your next project.

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