Crocheted Mermaid Costume for Infants – Free Pattern

My Version

I saw this cute mermaid costume on Pinterest.  It was being offered for sale on for just under $50.

I really wanted one for my baby granddaughter but wasn’t will to spend $50 for it.  I knew I could make it myself if only I could find the right pattern.  I searched online and found several different free patterns.  None of them really worked for me.  I ended up using 3 different patterns and combining the pieces to make the version I ended up with.

I used one pattern for the tail, another for the fin, and yet another for the headband.  The flower I just crocheted on my own without a pattern and stitched on to the headband.

The Bra is just 2 flowers attached with 10 chain stitches and 20 chain stitches attached to either side and on the tops to tie on the bra.  The chain length can be adjusted to fit the baby.

For the tail I used the free pattern from  I made only the TAIL portion of the pattern and fastened off after the finishing step.  For tail pattern click here!

For the fin I used the free pattern from DaPerfectMix.  I made it exactly as instructed by the pattern and attached it to the tail.  For fin pattern click here!

I used one of the free patterns from for the headband.  You can use anyone you like and just stitch on any flower you can make.  For headband pattern click here!


8 Replies to "Crocheted Mermaid Costume for Infants - Free Pattern"

  • comment-avatar
    shelly wright June 20, 2016 (3:06 pm)

    I was planning on following your lead with the same pattern for the tail (minus the ribbing ). A few questions if you don’t mind. 1) How many chains did you start with? 2) How many rows did you complete before starting to work in rounds? 3) Did you crochet the same number of she’ll rows as the original pattern?
    Sorry for all the questions! I just love your finished product!

    Thanks in advance!

  • comment-avatar
    Savvy Nana June 20, 2016 (3:41 pm)

    Hi Shelly! Thanks! I followed the tail instructions starting at the ribbing. The changes I made are 5 chains instead of the 10 in the pattern – I thought 10 chains made the ribbing too thick – Harper was only a month old at that time and she was tiny! Then I only did 54 rows of the ribbing then made 44 dc instead of the 54 dc in the tail set up row. I started the rounds after row 4 in the tail section. I made the same number of rows but fastened off because I didn’t like the tail. I used a different pattern for the fin, (see the link) I liked that tail better.
    But if you are not going to make the ribbing I would start with maybe 44 chains or measure the baby’s waist and make the anchor chain that measurement minus a half inch – the yarn stretches.
    Let me know if you have more questions. And post a photo of your finished project here, I’d love to see it!

  • comment-avatar
    shelly wright June 21, 2016 (1:12 pm)

    Thanks soooo much for your quick reply! I was worried that since this was an older post, it may not be that active. I am so happy that it is! 🙂

    My niece is doing the nursery in mermaids and an ocean theme. I thought this would make a perfect baby shower gift.

    Will post pics when done .


    • comment-avatar
      Savvy Nana June 21, 2016 (3:11 pm)

      You’re welcome. Yes you chose an older post, I made the mermaid tail just after my granddaughter Harper was born almost 2 years ago. Your niece’s nursery sound fun! And I’m sure she’ll love the mermaid tail as a shower gift. Please do post pics. If you’re an avid crocheter please subscribe to my blog, I share my patterns all the time. Although lately I haven’t done much crocheting because I’ve been busy with my current passion, papercrafts! I share those projects as well. If you have Facebook please like our page we’d really appreciate it!

  • comment-avatar
    shelly wright June 21, 2016 (6:51 pm)

    It looks from the pic you posted that you added a shell section above the ribbing section, correct? Can you tell me how you did that? Sorry, for all the ?s , but I have been looking for the perfect tail, and I believe that your’s is the one!

    • comment-avatar
      Savvy Nana June 22, 2016 (4:37 pm)

      I believe I did a shell stitch, sl st, shell stitch, sl st, all the way around, you may have to adjust the sl st depending on how many stitches you have around, you know just to make it even. It may be that you do a shell stitch, sl st next 2, shell stitch, sl st, in that pattern. You count your stitches and find the best pattern to make it even. Hope that helps

  • comment-avatar
    Lauren July 24, 2016 (2:34 pm)

    Hi there! First off, I just wanted to say that I love your finished project! Quick question though, I notice in the tail pattern that it calls for a “chunky” yarn. In your finished picture, the yarn doesn’t look as chunky. I’m just wondering how this will affect my gauge and what yarn (and hook) did you end up using? Thank you so much! 🙂

    • comment-avatar
      Savvy Nana August 3, 2016 (11:41 am)

      Hi Lauren! Sorry for the late reply, I was on vacation and just read this. I didn’t really use a different yarn or hood for the tail. I just used the same ones I used for the body. Please share a pic of your finished project I’d love to see it!

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