This adorable retro rainbow heart hat knitting pattern comes with instructions in six sizes from baby to adult and is the perfect knitting project for anyone you love!

This cute retro rainbow heart hat knitting pattern is fun, colorful and bold with a touch of 80’s style. When I was a kid, Lisa Frank was big, rainbows and heart were everywhere and everything was colorful.
I love that that kind of style is coming back and nothing is bringing me more joy right now than this cute rainbow heart hat pattern. A light blue heart with bright rainbow stripes arcing through the middle makes this hat so much fun.
This cute rainbow heart hat is knit in the round with worsted weight yarn using circular knitting needles and double pointed knitting needles. The fun rainbow heart motif is added at the end of knitting with duplicate stitch. This is a great project to practice your duplicate stitch with. If you are new to duplicate stitch, it’s a lot like embroidery and it’s a great technique to learn.
I have an entire duplicate stitch in knitting tutorial to get you started or refresh your memory.
I chose bright rainbow stripes for my retro rainbow heart hat, but this would look fantastic with pastel rainbow yarns as well! Make sure to choose a neutral background yarn color so your rainbow heart design really pops!
Are you ready to knit a retro rainbow heart hat? Let’s do it!
Retro Rainbow Heart Hat Knitting Pattern
Sizes included: 0-3 months, (6 months, 1-2 years, 3-6 years, Child Large/Adult Small, Adult Large) Read our sizing guidelines post for more information.
Gauge: 19 stitches = 4 inches
- Worsted weight yarn
- US 7 (4.5 mm) 16″ circular knitting needles
- US 7 (4.5 mm) double pointed needles
- Yarn needle
(If you need help, my favorite knitting reference book for everyone from beginners to advanced knitters is THIS ONE!)
This cute pattern is available for sale only. When you purchase this pattern, you’ll get an instant download PDF pattern in a few nicely formatted easy-to-print pages that includes written instructions and step by step photos. This pattern is available in my Etsy shop or on Ravelry where it will also be permanently stored in your Ravelry pattern library.
Happy Knitting!
If you liked this, you may also like some of my other posts…
- 30+ Best Valentine’s Day Knitting Patterns - February 6, 2025
- Valentine Heart Wreath Knitting Pattern - February 5, 2025
- Julehjerte Knit Woven Heart Knitting Pattern - February 4, 2025
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