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Mariner’s Hat Pattern


This mariner’s hat knitting pattern will work up into the perfect ribbed beanie!

The hat is stretchy as it is knit all in the rib stitch, so will fit a variety of head sizes.

You can make it with a turned-up cuff or wear it with a bit more slouch.

Scroll down to view the free pattern, or you can grab your printer-friendly, ad-free PDF here.


An Easy Knit Beanie

The hat pattern is easy to make, with advanced beginner knitters in mind.

Using knit and purl stitches, you will create 2×2 ribbing, knit in the round.

This knitted hat would take you around an hour or two to make (depending on how fast you knit!) and will be a cozy addition to the colder weather.

Related Post: How To Knit A Hat For Complete Beginners (+ Video Tutorial)

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Mariner hat knitting pattern

The Mariner’s Hat Design Inspiration

The style of this hat was inspired by a traditional British seaman’s cap.

Also known as a ribbed watchman’s hat, the design is made so that the hat has a snug fit and the brim turns up to keep the ears warm.

Great to make and gift, this hat is super easy to knit and will be well received by loved ones, friends, and charities.

ribbed mariners hat pattern knit with grey yarn

The Yarn I Used…

I made the stretchy hat using Classic Alize Lanagold yarn in dark grey and knit on size 5.5 mm (US 9) 16″ circular needles.

The yarn I used is a medium-weight yarn (04), so you can substitute this with any worsted, Aran, or 10-ply yarn.

This was knit up quite quickly and used only one skein of yarn.

mens mariner hat with ribbing
mariners hat pattern with ribbing

More Free Men’s Knit Hat Patterns

If you would like to make more knitted items/hats for men, please take a look at the other patterns in the men’s knitting patterns library.

There are also hat patterns for women, men, babies, and kids in the hat pattern library. – Hat Patterns

You may also like these free patterns for men’s hats:

man wearing a knitted mariners hat

Mariner’s Hat Knitting Pattern

Grab your inexpensive ad-free, PDF printable pattern in my shop here.


The Mariner’s cap knits up quickly and the simple design makes for a relaxing and enjoyable knit.

  • Please do not copy, sell, redistribute or republish this pattern. 
  • If you wish to share this pattern, link to the pattern page only.
  • You may sell items produced using this pattern.
  • Do NOT use the copyrighted photos for your product listing.
  • For the copyright T&C please read my Terms of Use.

Grab The Ad-Free Printable PDF Pattern Here

Skill Level – Easy

Gauge – 14 sts x 20 rounds = 4×4″/10×10 cm in 2×2 ribbing.


You can make this hat in a wide variety of head sizes.

  • Baby, Toddler, Child, Adult (average adult head)
  • Adult Hat lying flat and un stretched – Height = 12 inches / width = 6 inches
  • Child Hat lying flat and un stretched – Height = 11 inches / width = 5.5 inches
  • Toddler Hat lying flat and un stretched – Height = 10.5 inches / width = 5 inches
  • Baby Hat lying flat and un stretched – Height = 10 inches / width = 4.5 inches
Mariner hat pattern

The Supplies You Need




easy mens mariner hat pattern

Abbreviations / Knitting Abbreviations And Terms (US And UK) List

  • CO = Cast on
  • Cont = Continue(ing)
  • K = Knit
  • K2tog = Knit the next 2 stitches together
  • P = Purl
  • PM = Place marker
  • P2tog = Purl two stitches together
  • Rem = Remaining
  • Rep = Repeat
  • Rnd(s) = Round(s)
  • St(s) = Stitch(es)
  • 2×2 ribbing = K2, P2 – rep to the end of the round.
Mariner hat pattern


  • CO Baby – 56 sts / Toddler – 64 sts / Child – 72 sts / Adult – 80 sts, join in the round and pm, being careful not to twist the sts.
  • Round 1: K2, P2 (2 x 2 rib)to the end of the round.
  • Rep round 1 – K2, P2 every round until hat measures – Baby – 9 inches / Toddler – 10 inches / Child – 10.5 inches / Adult – 11 inches from the co edge.

Shape crown (decrease):

  1. K2, P2tog, to end of rnd
  2. K2tog, P1, to end of rnd
  3. K1, P1, to end of rnd
  4. K2tog, to end of rnd
  5. K2tog, to end of rnd
  • Cut yarn and sew through the rem sts and pull tight.
  • Secure and weave in any loose ends.
mariners cap in corfu Greece

Share your work with us…

I love seeing your finished project.

If you enjoyed making the hat, I’d love to see yours on Instagram, be sure to tag me @handylittleme.

If you are on Facebook, stop over to the handylittleme Facebook page and share a photo.  

I’d love to see your work.

Happy Knitting!

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  1. I would like to knit this but a little nervous because it doesn’t require double points. When decreasing do you really keep it on the circular needles with no problem?

    1. Hello, yes, it was fine when I decreased on the circulars, I didn’t have any issues at all. I mean you could change to DPN’s when you get to that stage if you wish. Thank you for visiting and taking a look around 🙂 Happy Knitting!

  2. So excited to knit this for my brother-in-law, but I only have US 8 sized needles. How many should I cast on to get the right size? I am using worsted weight yarn as well.

    Thank you!

    1. Hello, if you cast on 84 that should still work out ok – to go down a size to the US 8 needles. Thank you for visiting and taking a look around 🙂 Happy Knitting!

    1. Hello Brooke, If you are going to use a medium 4 weight yarn – you would be better off using 4.5mm – 5.5mm (US 7 to 9) needles. The hat was knit using medium yarn and size 5.5mm (US 9) needles. If you want to use 8mm (US 11) needles – you will need a Bulky (05) weight yarn. The pattern would need to be adjusted for that, as there would be too many stitches cast on – making the hat really huge! Thanks for visiting! 🙂

  3. Hi, I’m following this pattern and the hat seems to have a very small diameter. I’m about 8 rows in and was wondering if this is normal/Will it stretch or should I start over and cast on more stitches?

    1. Hello, are you using the recommended needle size and yarn weight? If yes then it should be fine, it stretches because it is knit in ribbing. It has a comfortable fit – the ribbing allows for that. I hope that helps! 🙂

  4. If I wanted to make it a larger diameter (boyfriend has a big head and long thick hair) how would i adjust to cast on? Just make sure it’s an even number? I’m a new knitter 😊

    1. Hello Anastasia, yes, if you adjust the number of sts you cast on for the hat, keep an even number and you should be fine. Then you just need to adjust the decreases for the crown also. 🙂

  5. Hi! I want to knit a few of these for our local cancer center. If I have bulky yarn and size 11 needles, how many stitches would I need to cast on? I think if I have that starting point I can adapt the pattern myself….

  6. Hi Louise! I am new at knitting and just completed matching beanies for my daughter and grandson using your mariner beanie pattern. I’m getting ready to start matching beanies for my daughter and SIL but she’s picked a super bulky 6 yarn. Can you offer me some guidance? The yarn calls for 13 (9mm)…can you help me adjust? I love using the no.10, 16 in circular, but thinking that’s not going to work.
    I looked through MANY beanie patterns before finding yours and was so glad I did! Thank you in advance!

    1. Hello Debbie,
      I’m so happy you enjoyed the pattern!
      You can search all of my hat patterns in the main menu – women’s hats and headbands and in men’s patterns.
      There are quite a few choices that use super bulky yarn.
      Happy knitting!

  7. I just finished the mariner’s hat for my husband in dark gray color. It has a modern style, he like it ! Many thanks for the pattern. Chris

    1. Hello Chris,

      I’m so happy you liked the pattern and that your husband loves the hat!

      Happy knitting 🙂