Ten Adorable Affordable Infant Onesie Costumes Under $25

Onesies or rompers make handy apparel options for infants every day, so it's no surprise that they make perfect costumes for Halloween and beyond. Costume onesies are also fun for photo shoots, family gatherings, and other holiday events. Prices vary per size in some of the costume onesie outfits in this collection. Remember that prices also fluctuate on Amazon -- the prices here were under $25 at the time of publication.

1 Totally Adorable Baby Bear Jumpsuit Costume Onesie

Found on Amazon

Your baby will be as soft as a plush teddy bear in this fuzzy cute animal onesie! The little bear costume has a bright green bowtie. This romper costume comes with matching booties.

2 Funny Convict with Tattoos Baby Costume Romper

Found on Amazon

This is a funny Halloween costume idea for your little one! The convict striped onesie includes sheer "tattoo" sleeves the make your baby look bad to the bone!

3 Cute Piggie Infant Baby Onesie Halloween Suit

Found on Amazon

This fluffy pig suit for babies is so darling! Complete with an eared, snouted pink piggie hood.

4 Baby Lion Adorable Costume Onesie for Infants

Found on Amazon

This plush onesie is perfect with big lion feet and massive lion mane. Includes little mouse rattle to keep the thorns out of your little lion's feet.

5 Baby Pink Monster One-Piece Outfit

Found on Amazon

This cute costume is perfect for your own little monster! This plush pink onesie comes with fuzzy feet and monster head with horns attached.

6 Black and White Cow Baby Onesie Costume Jumpsuit

Found on Amazon

This is an adorable costume for your baby this Halloween or photo session. The cow costume includes tail, floppy ears, and small plush horns. The cute cow has a pink belly and big pink nose. So cute!

7 Teenage Mutant Ninja Turtle Infant Romper

Found on Amazon

The officially licensed TMNT costume is shown here transforms your kiddo into Michealangelo! The costume is also available with a purple sash -- making your child's costume Donatello. Get them both for a fun twin costume idea!

8 Baby Tiger Jumpsuit Onesie for Halloween & More

Found on Amazon

This full polyester one-piece suit is perfect for Halloween and cute photo ops. The orange striped outfit is cartoonishly cute for your little tiger!

9 Affordable Hulk Superhero Infant Onesie Bodysuit with Cap

Found on Amazon

Your baby will be raging cute in this green muscle-print Incredible Hulk costume onesie. The romper outfit comes with an adorable Hulk beanie hat!

10 Fuzzy Pink and White Unicorn Infant Onesie

Found on Amazon

How cute is this fuzzy and whimsical unicorn costume romper for infants?! The hood features a smiling unicorn face and a plush pink striped unicorn horn.

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