Baby Halloween Costume Ideas: Fun, Practical & Instagram-Worthy

Halloween costumes for babies aren’t just about the “aww” factor (though yes, we absolutely love that). They’re also about comfort, mobility, safety and capturing the joy of these early years. Whether you’re planning your little one’s first Halloween or prepping for a toddler who’s all about movement and mischief, No More Squirmy Baby has curated a list of costume ideas that check all the boxes: cute, safe and effortless to manage.

What to Look for in a Baby Costume

• Easy diaper-access: Snap-closures, onesies with zippers or bunting-style outfits.

• Mobility friendly: For those crawling or toddling, avoid long trailing hems or oversized parts that trip. Good Housekeeping+1

• Comfortable fabric: Choose soft materials that won’t scratch or irritate sensitive baby skin.

• Photo-ready but practical: Think personalized, themed or cute — but still manageable.

• Age-appropriate design: For newborns, wrap-style or bunting costumes may work better; for older infants/toddlers, allow for active movement.

Top 10 Baby Halloween Costume Ideas

1. Classic Pumpkin – Sweet and simple for newborns or infants; perfect for a first Halloween.

2. Animal Onesie – Lion, elephant, bear or unicorn: super cute and comfy.

3. Storybook Character – Think “Where the Wild Things Are”, Little Red Riding Hood, etc.

4. Food-themed Costume – Baby avocado, sushi roll or cupcake — playful and photo-worthy.

5. Superhero/Classic Hero – For the mobile baby who’s ready to explore.

6. Matching Family Costume – Coordinating baby + parent costumes make for memorable snaps.

7. Minimalist Costume – A cute printed tee (“Future MVP”, “Tiny Pumpkin”) + accessories = low-stress.

8. DIY Friendly Outfit – Use existing onesies + simple accessories for a budget-friendly, unique look.

9. Warm & Cozy Costume – Especially in cooler climates: bunting or jumpsuit style that keeps baby comfy and warm.

10. Photo Op Special – Costume built around a stroller theme or prop for a standout Instagram shot.

    
    

Practical Tips When Choosing and Wearing a Costume

• Try it on ahead of time: Let baby wear it for a little while so you can check mobility and comfort.

• Check for loose parts: Buttons, accessories or decorations should be secure to avoid choking hazards.

• Layer underneath: If it’s chilly, make sure your baby can wear a base layer without messing the look.

• Plan for diaper changes: If you’ll be out trick-or-treating or attending a party, make sure the costume allows fast access.

• Consider safety features: Add reflective tape, a glow stick or choose lighter colors so baby is visible.

Costume Ideas by Age / Stage

• 0-6 months (non-mobile or early mover): Bunting costumes, one‐piece sleepers, comfy hats.

• 6-12 months (crawling/walking begins): Cozy jumpsuits with safe slippers, minimal trailing parts, fun hats or ears.

• 12-24 months (toddlers on the move): Two-piece sets, comfortable shoes you don’t mind walking in, props that are soft and safe.

  
  

Capture the Moment

• Set aside a few minutes before the event for a few “just because” photos.

• Use natural light, neutral background, and let baby’s personality shine.

• Share the journey: a quick story or reel about “baby’s first Halloween costume” can drive engagement for your brand.

Costume choice should be equal parts adorable and intentional. At No More Squirmy Baby, we encourage you to choose costumes that reflect your little one’s personality, keep them comfortable and safe, and create photo memories you’ll treasure. Ready, set, boo-tiful! 💛