Special Occasions

Birthday Outfits for Boys & Girls

Celebrate their big day in classic Cecil & Lou style with birthday outfits for boys and girls. Shop smocked bubbles, birthday dresses, diaper sets, short sets, pajamas, rompers, and other coordinated styles featuring cakes, balloons, crowns, embroidery, appliqué, and playful party details.

From first birthdays to celebrations for bigger kids, find sweet outfits for birthday parties, milestone photos, family gatherings, and sibling coordination. Select styles may also offer personalization or monogramming for an extra-special birthday look.

  • Pink And Green Smocked Birthday Cake Bow Bubble Toddler girl wearing a smocked bubble with a blurred background

    Pink And Green Smocked Birthday Cake Bow Bubble

    $42.00
    $42.00 $42.00
  • Blue Birthday Hat Polo Short Set

    Blue Birthday Hat Polo Short Set

    $41.00
    $41.00 $41.00
  • Pink Birthday Cake Knit Zipper Pajamas Toddler girl wearing birthday print zipper pajamas with ruffle details

    Pink Birthday Cake Knit Zipper Pajamas

    $32.00
    $32.00 $32.00
  • Pink Birthday Cake Knit Pajamas Girl wearing pajamas with hands on her hips smiling.

    Pink Birthday Cake Knit Pajamas

    $32.00
    $32.00 $32.00

Frequently asked questions

What are the best first birthday outfits?
Classic smocked birthday bubbles, embroidered shortalls, and sweet birthday dresses made from soft cotton are perfect for comfort and photos.
Do you sell first birthday dresses for girls?
Yes, shop smocked and embroidered birthday girl dresses with bows, cupcakes, or balloon designs. Many are monogram ready for personalization.
Do you offer first birthday outfits for boys?
Absolutely. We carry birthday boy outfits like shortalls, bubbles, and two piece sets with classic applique and smocked birthday designs.
Can I get a personalized or monogrammed birthday outfit?
Many of our baby birthday outfits and birthday dresses are monogram ready so you can add initials or a name for a custom gift.
Do you have matching sibling outfits for birthdays?
Yes, many of our first birthday collections include coordinating boy and girl styles so siblings can match for party photos.
What sizes do you carry for birthday outfits?
We stock sizes from 12M through 8, with select styles available up to 6 for big brother or sister matching.
When should I order for my child’s first birthday?
We recommend ordering early to ensure availability and allow time for personalization. Use filters to view in stock options for faster delivery.