What Should a Baby Girl Wear for Her First Birthday?
Short answer: dress a baby girl for her first birthday in something she can sit, crawl and smile in. Look for a soft lining, a knee-length skirt, an easy back zipper and the right size (usually 9β12 months, 1Y or 12β18 months). Then match the color to the party theme and plan a second outfit if you are doing a cake smash.
A first birthday goes by fast, and the photos stay forever. This guide walks you through comfort, sizing, styles and colors so the outfit works for both the party and the pictures. When you are ready to shop, browse our first birthday dresses.
1. Start with comfort
A one-year-old will not sit still for a scratchy or tight dress. Before you look at colors, check four things:
- Lining: tulle and sequins look beautiful, but the side that touches her skin should be soft. Every dress in this guide has a cotton lining.
- Length: a knee-length skirt lets her crawl and stand without tripping. Save floor-length styles for older girls.
- Closure: a back zipper is the quickest way to dress a wriggly baby. Avoid long rows of tiny buttons.
- Sleeves: sleeveless dresses suit summer and warm rooms. Puff or long sleeves are better for fall and winter parties (see our winter first birthday outfit ideas).
2. What size should a 1-year-old wear?
Most babies turning one wear 9β12 months, 1Y or 12β18 months, but babies grow at different speeds. Measure her chest and height and compare them with the size guide rather than going by age alone.
- If she is between two sizes, choose the larger one. A party dress that is a little roomy is more comfortable than one that is tight across the chest.
- Order early enough to try the dress on at home a week or so before the party. That leaves time for an exchange if needed.
3. Dress, tutu or full set?
There is no single right answer. Pick the style that fits your plans for the day:
- Tulle tutu dress: the classic first birthday look. A full skirt photographs beautifully when she sits on the floor. Diana Fuchsia has a hot pink tulle skirt with a satin sash, and Eliza Pink adds a sparkling rhinestone collar.
- Satin dress with puff sleeves: a little more classic and easy to wear all day. Michaela is white satin with a ruffled collar, and Linda Peach has feather-trimmed puff sleeves.
- Baby dress set: if you want a head-to-toe look without hunting for accessories. The Linda Pink Baby Dress Set comes with a matching lace bonnet and shoes, and the Star White Baby Dress Set comes with a star bonnet, bow and shoes.
4. Match the dress to the party theme
Choose the theme first and the dress will be easy. A few combinations that work well:
- Classic white: soft and timeless with any decor. Elena has 3D sequin flowers and a fringe skirt. Cindy White is covered in pearl beads.
- Pink princess: a favorite first birthday theme. Try Diana Fuchsia, Eliza Pink or the pink Linda set.
- Rainbow or unicorn: Perla Unicorn pairs an iridescent sequin top with a pastel rainbow skirt.
- Garden and flowers: Barbara Yellow has a bodice covered in 3D flower petals.
- Snow queen or ocean blue: Emily Sax Blue in royal blue or Cindy Blue in light blue with pearls.
5. Plan for the cake smash
Frosting and tulle are not friends. Many parents put the party dress on for guests and photos, then change into a simple second outfit, or just a diaper cover, for the cake smash. If you want the cake photos in the party dress, take them at the end of the day.
6. Hair accessories and shoes
Keep accessories soft and light. A small clip or a soft headband stays on better than a big crown. Most of our party dresses come with a matching hair accessory, so you do not need to shop separately (Rosa, Victoria and Elena are sold as dress only). For shoes, soft-soled baby shoes or bare feet are best for a baby who is just starting to stand.
7. When to order
Orders ship the next business day from Lafayette, California and usually arrive within 1β3 business days in the US. We still recommend ordering one to two weeks before the party so you have time for a try-on and an exchange if the size is not right.
Frequently asked questions
What color should a baby girl wear for her first birthday?
Choose a color that matches the party theme. White, pink and pastels are popular choices because they look soft in photos. If the decorations are very colorful, a white or light dress keeps the pictures balanced.
Should she wear a tutu for the cake smash?
A tulle tutu looks lovely in cake smash photos, but frosting is hard to clean from tulle. Many parents use a simple second outfit for the cake and keep the party dress for guests and portraits.
What size dress does a 1-year-old wear?
Usually 9β12 months, 1Y or 12β18 months. Measure her chest and height and check the size guide. If she is between sizes, choose the larger one.
Ready to choose? See all our first birthday dresses, handmade and shipped the next business day.
