9 Super Cute Baby Onesie Ideas

A simple, flat design of a baby onesie in a soft pink color, featuring two white hearts on the chest. The onesie has short sleeves and a round neckline, with the snap fasteners at the bottom typical for infant bodysuits. The design is minimalist, using flat colors without any additional textures or shadows, which gives it a clean and modern look. The image has a plain white background that highlights the pink onesie.

If you’re like me, one of the most fun parts of having a baby is dressing them in adorable outfits! But when it comes down to it, just popping them in a comfy and easy onesie wins. That’s why we’re bringing you all these adorable baby onesie ideas so you don’t have to search for them on your own (because who has time for that?!)

And if you’re here because you have a baby shower to attend and you want to bring the cutest present possible, you’re in the right place, my friend! Scroll through for 9 onesie ideas guaranteed to make everyone at that shower smile…but especially the parents.

Before you buy one of these, though, make sure you scroll down to read more about sizing!

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Funny Baby Onesie Ideas

1. What’s Poppin’ Onesie


Product Features

  • Fine ring-spun cotton for a smooth touch and comfy fit
  • Comes in black or dark grey heather
  • Sizes from 3-24 mos

Did anyone else love the corn popper toy as a kid?! If so, this onesie lets you share your love for this toy with your little one before they’re even big enough to walk! We love a retro onesie that your 80s and 90s friends will appreciate!

2. I’m the Baby, It’s Me Onesie


Product Features

  • Onesies are Gerber Premium Brand
  • Toddler tees are Rabbit Skins
  • 100% natural cotton
  • Kid-safe inks
  • Comes in white, natural, heather grey, and light pink (letters are hard to see on pink background)
  • 0-24 mos in onesies, also available in toddler t-shirt sizes
  • Sizing up recommended in onesies

If you’re a Swiftie, you’ll love this onesie. The soft colors and trendy font don’t hurt, either. But don’t worry, your little one definitely won’t be the anti-hero in this bodysuit. Hehe.

3. Boobivore Dino Onesie


Product Features

  • Ringspun cotton
  • Eco-friendly water based ink
  • Newborn – 24 mos bodysuit or 2T – 4T t-shirt
  • Comes in 8 kid-friendly colors

If you’re a proud breastfeeding mom but you want a more subtle way to give yourself a shout-out, this onesie is perfect. This adorable dino onesie is great for everything from a day lounging at home to a dino-themed first birthday party.

Funny/Punny Baby Onesie Ideas

1. Homegrown Onesie


Product Features

  • Onesies are Gerber Premium Brand
  • Long sleeve and short sleeve white and natural color styles
  • Kid safe inks
  • 0-18 mos in onesies, also available in toddler t-shirt sizes
  • Sizing up recommended in onesies

Looking to raise a little foodie/ are you a foodie yourself? This veggie-themed onesie is perfect for letting your baby show their roots–see what we did there?

2. It Feels Like One of Those Nights Onesie


Product Features

  • Onesies are Gerber Premium Brand
  • Long sleeve and short sleeve white and natural color styles
  • Kid safe inks
  • Newborn – 18 mos
  • Sizing up recommended for white onesies

I know, I already showed you a Swiftie onesie, but I couldn’t help myself. I mean, we’re all going to have “one of those nights” (or several) with our babies, so why not make yourself smile a little while you’re having one?

If you were really big into the Red era, this little bodysuit is perfect for your baby. (And if you weren’t big into the Red era, I’m personally worried about you, but we can discuss that at a different time).

2. Guess What Onesie


Product Features

  • Onesies are Gerber Premium Brand
  • 100% organic cotton
  • Comes in several kid-friendly colors
  • Kid safe inks
  • 0-24 mos
  • Sizing up recommended

I had never heard, “Guess what? …Chicken butt!” until I met my dearly beloved husband, but he thinks it’s hilarious. So if you have a sense of humor similar to his, your baby will NEED this onesie.

Plus, it’s perfect for wearing sans pants, which is just the thing to do some days–or all days, we don’t judge. .

3. Auntie Onesie


Product Features

  • Onesies are Gerber Premium Brand
  • Long sleeve and short sleeve white and natural color styles
  • Kid safe inks
  • Newborn – 18 mos
  • Sizing up recommended

If you’re excited about being a new auntie, you’ll love this funny onesie. This way, your niece or nephew can let everyone know who their favorite is, even before they can talk.

4. Bookworm in Training Onesie


Product Features

  • Onesies are Gerber Premium Brand
  • Short sleeve, natural color
  • Kid safe inks
  • 0 – 18 mos
  • Sizing up recommended

With three scholars on staff at Undefining Motherhood, you know we all love a good book! This bodysuit is perfect for cuddles and story time with your baby’s first book.

5. Succulent Bodysuit


Product Features

  • 100% cotton short sleeve or long sleeve white bodysuit
  • Newborn – 24 mos
  • Kid-safe + eco-friendly inks
  • Multiple bodysuit brands used

This whimsical bodysuit is silly and adorable. Whether the mom-to-be is an obsessive “plant lady” or you just like puns, you can’t go wrong with this little shirt.

What Size Should I Buy?!

Just remember, the official Onesie brand (produced by Gerber) tends to run small. So for most of the bodysuits listed in this article, you’ll want to size up. If you choose a bodysuit printed on something other than a true Onesie, you’ll likely be able to pick something true-to-size.

Whether any of these onesies sparked your interest or not, I hope you’re able to find the perfect little bodysuits for your new baby or for a baby shower gift!

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