Halloween Costumes & Accessories

☾ The GentleNest Halloween shop

A little spooky.
A lot adorable.

254 playful costumes for first trick-or-treats, school parades, family photos and every make-believe moment in between.

Choose their Halloween world See every costume
✦ 30-day returns ✦ Free shipping $39+ ✦ Sizes for little ones
Baby Halloween Romper with Star Tulle and Bow Headband Costume Baby Halloween Romper with Star Tulle and Bow Headband Costume Newborn Ghost and Pumpkin Romper Costume Newborn Ghost and Pumpkin Romper Costume Brown Lion Jumpsuit Costume for Toddlers Brown Lion Jumpsuit Costume for Toddlers

Pick a little world

Who will they be this Halloween?

Start with a favorite, then wander through all the costumes below.

Costume spotlight

Little looks to love right now

Ready for the full parade?

All Halloween costumes

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254 items

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  • Unisex infant brown romper with 3D frog eyes and feet design

    3D Frog Baby Romper Costume

    3D Frog Baby Romper Costume
    $40.99
    12-18M 9-12M 6-9M 3-6M
  • Watermelon print baby romper with matching hat

    Watermelon Print Baby Romper and Hat Costume

    Watermelon Print Baby Romper and Hat Costume
    $28.99
    9-12M 6-9M NB 3-6M +1
  • Infant fox costume romper with hood and tail in orange and white

    Fox Infant Romper Costume for Babies

    Fox Infant Romper Costume for Babies
    $45.99
    0-3M 3-6M 6-9M 9-12M +1
  • Infant girl watermelon-themed romper with green ruffled straps and matching red bowknot headband

    Watermelon Romper and Bowknot Headband Costume for Infant Girls

    Watermelon Romper and Bowknot Headband Costume for Infant Girls
    $28.99
    12-18M 9-12M 6-9M 3-6M +1
  • Newborn white romper with gold star and butterfly lace overlay and pearl butterfly headband

    Newborn Butterfly Lace Romper for Infant Photography Costume

    Newborn Butterfly Lace Romper for Infant Photography Costume
    $22.99
    0-1M
  • Purple butterfly wings tulle romper dress for baby girls styled with shoes

    Butterfly Wings Tulle Romper Dress for Baby Girls Costume

    Butterfly Wings Tulle Romper Dress for Baby Girls Costume
    $22.99
    9-12M 12-18M 3-6M 18-24M
  • Group of Fleece Animal Hooded Baby Romper Costumes

    Fleece Bunny, Bear, Sheep & Koala Romper Costumes

    Fleece Bunny, Bear, Sheep & Koala Romper Costumes
    $29.99
    4-6M 0-1M 7-9M 10-12M +1
  • Back view of brown deer tutu dress for girls

    Baby Reindeer Tutu Dress Costume

    Baby Reindeer Tutu Dress Costume
    $56.99
    10Y 14Y 9Y 8Y +11
  • Grey bunny tutu dress costume set with bunny ears headband, bow tie, and tail accessories

    Grey Bunny Tutu Dress Costume Set for Girls

    Grey Bunny Tutu Dress Costume Set for Girls
    $45.99
    6Y 7Y 8Y 9Y +10
  • Black skeleton and gray bat hooded rompers side by side

    Baby Skeleton and Bat Romper Costume

    Baby Skeleton and Bat Romper Costume
    $46.99
    6-12M 12-18M 0-3M 3-6M
  • Wooden baby milestone card

    Knitted Tiger Baby Costume Set for Newborns

    Knitted Tiger Baby Costume Set for Newborns
    $30.99
  • Two babies in yellow and white chicken jumpsuit costumes sitting in nests

    Baby Chicken Jumpsuit Costume for Photography

    Baby Chicken Jumpsuit Costume for Photography
    $33.99
    One Size
  • Group of infant bat wing romper costumes in different colors and wing patterns

    Infant Bat Hooded Romper Costume

    Infant Bat Hooded Romper Costume
    $39.99
    6-12M 12-18M 0-3M 3-6M
  • Baby wearing yellow crochet bear hat and red diaper cover

    Crochet Baby Bear Costume Set

    Crochet Baby Bear Costume Set
    $22.99
  • Orange baby romper costume with yellow pumpkin face applique and green tie-up shoulder straps

    Pumpkin Face Tie-Up Romper Baby Costume

    Pumpkin Face Tie-Up Romper Baby Costume
    $39.99
    3-6M 3-4Y 2-3Y 18-24M +1
  • Infant wearing green avocado hooded romper with brown seed applique and striped stockings

    Avocado Infant Romper Costume for Toddlers

    Avocado Infant Romper Costume for Toddlers
    $47.99
    18-24M 12-18M 6-12M 0-6M
  • Toddler wearing plush pumpkin hooded romper costume with green leaf collar

    Pumpkin Hooded Romper Costume for Toddlers

    Pumpkin Hooded Romper Costume for Toddlers
    $57.99
    3-4Y 4-5Y 18-24M 2-3Y +2
  • Close-up of crochet yarn texture in green and blue colors

    Crochet Dinosaur Hat and Tail Costume Set

    Crochet Dinosaur Hat and Tail Costume Set
    $35.99
  • Blue knitted baby hat with green dinosaur spikes and matching diaper cover

    Knitted Dinosaur Baby Costume Set for Newborns

    Knitted Dinosaur Baby Costume Set for Newborns
    $29.99
  • Multiple mermaid tail skirts and purple shell tops

    Newborn Mermaid Photo Costume

    Newborn Mermaid Photo Costume
    $35.99
    6-12M 3-6M 1-2M
  • Pink crochet baby boxing shorts close-up

    Crochet Baby Boxing Costume Set for Newborns

    Crochet Baby Boxing Costume Set for Newborns
    $27.99
    0-3M
  • Green cow hat with ears and horns and green plush pillow

    Green Cow Romper Costume Set for Newborns

    Green Cow Romper Costume Set for Newborns
    $37.99
  • Crochet baby mermaid costume set packaging and display

    Crochet Baby Mermaid Costume for Infants

    Crochet Baby Mermaid Costume for Infants
    $30.99
  • Handmade khaki knit baby lion costume set with romper and mane hat

    Handmade Lion Knit Baby Costume for Newborns

    Handmade Lion Knit Baby Costume for Newborns
    $50.99
    One Size
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Striped Cotton Baby Romper with Dog Appliqué

Chérie Aurélie Puppy Striped Romper

Chérie Aurélie Puppy Striped Romper
$27.99
0-6M 6-9M 9-12M 18-24M