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.

  • Birthday Party Animals Smocked Bubble Close-up of a pink dress with ruffled collar and floral birthday pattern.

    Birthday Party Animals Smocked Bubble

    $42.00
    $42.00 $42.00
  • Birthday Cake Heirloom Bubble Young child wearing a white dress with pink trim outdoors

    Birthday Cake Heirloom Bubble

    $50.00
    $50.00 $50.00
  • Birthday Cake Heirloom Dress Child wearing a white dress with lace details in an outdoor setting

    Birthday Cake Heirloom Dress

    $55.00
    $55.00 $55.00
  • Birthday Balloon Heirloom Bubble Child holding a pink balloon on a wooden deck with white railings.

    Birthday Balloon Heirloom Bubble

    $50.00
    $50.00 $50.00
  • Birthday Balloon Heirloom Dress Young girl in a white dress with lace details standing on a wooden deck.

    Birthday Balloon Heirloom Dress

    $55.00
    $55.00 $55.00
  • Embroidered Heirloom Birthday Short Set Young boy in a light-colored outfit standing outdoors with greenery in the background

    Embroidered Heirloom Birthday Short Set

    $55.00
    $55.00 $55.00
  • Embroidered Heirloom Birthday Bloomer Set Two children in matching outfits standing outdoors with a blurred natural background

    Embroidered Heirloom Birthday Bloomer Set

    $55.00
    $55.00 $55.00
  • Embroidered Heirloom Birthday Dress Three children in matching outfits standing on grass with trees in the background

    Embroidered Heirloom Birthday Dress

    $55.00
    $55.00 $55.00
  • Blue Birthday Balloon Heirloom Bubble Baby in a white dress with embroidered details, holding balloons outdoors.

    Blue Birthday Balloon Heirloom Bubble

    $50.00
    $50.00 $50.00
  • Blue Birthday Balloon Heirloom Short Set Baby bib with embroidered name and balloons on a white background

    Blue Birthday Balloon Heirloom Short Set

    $55.00
    $55.00 $55.00
  • Pink Birthday Balloon Heirloom Bubble Young girl in a white dress with balloons in the background

    Pink Birthday Balloon Heirloom Bubble

    $50.00
    $50.00 $50.00
  • Pink Birthday Balloon Heirloom Dress White lace dress worn by a person with a blurred natural background

    Pink Birthday Balloon Heirloom Dress

    $55.00
    $55.00 $55.00
  • Blue Pique Birthday Balloons Short Set Child wearing a white t-shirt with balloon design and light blue shorts on a white background

    Blue Pique Birthday Balloons Short Set

    $43.00
    $43.00 $43.00
  • Pink Pique Birthday Balloons Dress Girl wearing a dress with balloons and a bow on it smiling.

    Pink Pique Birthday Balloons Dress

    $43.00
    $43.00 $43.00
  • Blue Smocked Birthday Cake Dress Close up of a smocked dress with birthday cake designs.

    Blue Smocked Birthday Cake Dress

    $45.00
    $45.00 $45.00
  • Pink And Green Smocked Birthday Cake Bow Dress Close up of a dress with smocking details and a bow

    Pink And Green Smocked Birthday Cake Bow Dress

    $45.00
    $45.00 $45.00

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.