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Cute Birthday Outfits, Unicorn Birthday Outfit, Birthday Outfits for Girls

Showing: 1-43 of 43
Pastel Unicorn - Cold Shoulder Tutu Chiffon Stretch Cotton Dress Pastel Unicorn - Cold Shoulder Tutu Chiffon Stretch Cotton Dress
Pastel Unicorn - Cold Shoulder Tutu Chiffon Stretch Cotton Dress
$19.97 $10.97
(7)
Unicorn Magic Boho Flare Dress Unicorn Magic Boho Flare Dress
Unicorn Magic Boho Flare Dress
$21.97 $11.97
DEAL OF THE DAY - Unicorn Mint Rainbow Tutu Skirt & Top Set - Sydney So Sweet - Cute Clothes for Girls, Baby Boutique
Unicorn Mint Rainbow Tutu Skirt & Top Set
$24.97 $19.97
(26)
Gold Unicorn Pastel Tutu Romper - Sydney So Sweet
Gold Unicorn Pastel Tutu Romper
$15.97 $7.99
Rose Pink Lace & Pom Pom Dress
Rose Pink Lace & Pom Pom Dress
$24.97 $11.97
(1)
Seafoam Lace & Pom Pom Dress
Seafoam Lace & Pom Pom Dress
$24.97 $9.99
(1)
Wrap Style Ruffle Pastel Unicorn Dress Wrap Style Ruffle Pastel Unicorn Dress
Wrap Style Ruffle Pastel Unicorn Dress
$19.97 $12.97
(5)
Dusty Rose & Lace Dress - Sydney So Sweet
Dusty Rose & Lace Dress
$24.97 $12.97
Girls boutique rainbow unicorn tutu dress
Pastel Pink Unicorn Tutu Romper
$15.97 $7.99
(6)
Pastel Unicorn - Short Sleeve Tutu Chiffon Stretch Cotton Dress
Pastel Unicorn - Short Sleeve Tutu Chiffon Stretch Cotton Dress
$19.97 $7.99
Crown Princess Hot Pink Tutu Romper - Sydney So Sweet
Crown Princess Hot Pink Tutu Romper
$15.97 $6.99
(1)
Girls boutique pink unicorn tutu dress
Unicorn Pink and Gold Tutu Skirt & Top Set
$19.97 $9.99
(27)
Vintage Floral Halter Dress - Pink Vintage Floral Halter Dress - Pink
Vintage Floral Halter Dress - Pink
$19.97 $10.97
(1)
Crown Princess Gold Tutu Romper - Sydney So Sweet
Crown Princess Gold Tutu Romper
$15.97 $6.99
(1)
White Unicorn - 8" Large Unicorn Hair Bows 8" White Unicorn - 8" Large Unicorn Hair Bows 8"
White Unicorn - 8" Large Unicorn Hair Bows 8"
$16.97 $9.97
White Pom Pom Girls Tutu Skirt
White Pom Pom Girls Tutu Skirt
$15.97 $9.97
Vintage Floral Halter Dress - Blue
Vintage Floral Halter Dress - Blue
$19.97 $10.97
(1)
Unicorn Lavender Rainbow Tutu Skirt & Top Set Unicorn Lavender Rainbow Tutu Skirt & Top Set
Unicorn Lavender Rainbow Tutu Skirt & Top Set
$24.97 $19.97
(26)
Purple Flower Unicorn Tutu Costume with Headband Horn
Purple Flower Unicorn Tutu Costume with Headband Horn
$28.97 $18.97
(3)
Unicorn Pink Rainbow Tutu Skirt & Top Set
Unicorn Pink Rainbow Tutu Skirt & Top Set
$24.97 $19.97
(26)
Unicorn Pastel - Chunky Beads Necklace
Unicorn Pastel - Chunky Beads Necklace
$16.97 $11.97
(23)
Unicorn Mint - Chunky Beads Necklace
Unicorn Mint - Chunky Beads Necklace
$16.97 $11.97
(23)
Rainbow Metallic Unicorn Headband, Kid or Adult Costume Accessories
Rainbow Metallic Unicorn Headband, Kid or Adult Costume Accessories
$12.97 $8.97
(3)
Hot Pink Sparkle Unicorn Flutter Sleeve T-Shirt - Sydney So Sweet - Cute Clothes for Girls, Baby Boutique
Hot Pink Sparkle Unicorn Flutter Sleeve T-Shirt
$16.97 $12.97
(7)
Pink Flower Unicorn Tutu Costume with Headband Horn
Pink Flower Unicorn Tutu Costume with Headband Horn
$28.97 $18.97
(3)
Pair of Pink Feather Chevron Hair Bow Clips
Pair of Pink Feather Chevron Hair Bow Clips
$14.97 $8.97
Hot Pink - Kids Ballet Tutu Value 5-Pack - Sydney So Sweet - Cute Clothes for Girls, Baby Boutique
Hot Pink - Kids Ballet Tutu Value 5-Pack
$44.97 $29.97
(2)
White Diamond Unicorn - 8" Large Unicorn Hair Bows 8" White Diamond Unicorn - 8" Large Unicorn Hair Bows 8"
White Diamond Unicorn - 8" Large Unicorn Hair Bows 8"
$16.97 $9.97
Pink Unicorns - 8" Large Unicorn Hair Bow Pink Unicorns - 8" Large Unicorn Hair Bow
Pink Unicorns - 8" Large Unicorn Hair Bow
$16.97 $9.97
Ombre Blue & Pink Unicorn - 8" Large Unicorn Hair Bows 8" Ombre Blue & Pink Unicorn - 8" Large Unicorn Hair Bows 8"
Ombre Blue & Pink Unicorn - 8" Large Unicorn Hair Bows 8"
$16.97 $9.97
Light Blue Pom Pom Girls Tutu Skirt - Kids Size Light Blue Pom Pom Girls Tutu Skirt - Kids Size
Light Blue Pom Pom Girls Tutu Skirt - Kids Size
$15.97 $9.97
Mint Pom Pom Girls Tutu Skirt- Kids Size
Mint Pom Pom Girls Tutu Skirt- Kids Size
$15.97 $9.97
Hot Pink - Pom Pom Tutu Birthday Party Skirt - Sydney So Sweet - Cute Clothes for Girls, Baby Boutique
Hot Pink Pom Pom Girls Tutu Skirt - Kids Size
$15.97 $9.97
Lavender Pom Pom Tutu Skirt - Kids Size Lavender Pom Pom Tutu Skirt - Kids Size
Lavender Pom Pom Tutu Skirt - Kids Size
$15.97 $9.97
Pink - Pom Pom Tutu Birthday Party Skirt
Pink - Pom Pom Tutu Birthday Party Skirt
$15.97 $9.97
(95)
Purple - Kids Ballet Tutu Value 5-Pack
Purple - Kids Ballet Tutu Value 5-Pack
$44.97 $29.97
(2)
Pink - Kids Ballet Tutu Value 5-Pack
Pink - Kids Ballet Tutu Value 5-Pack
$44.97 $29.97
(2)
Unicorns Are Real Flutter Sleeve T-Shirt
Unicorns Are Real Flutter Sleeve T-Shirt
$16.97 $8.99
Unicorn Green - Chunky Beads Necklace
Unicorn Green - Chunky Beads Necklace
$16.97 $11.97
(23)
Pink Metallic Unicorn Tutu Costume with Headband for Girls
Pink Metallic Unicorn Tutu Costume with Headband for Girls
$28.97 $18.97
(3)
Felt Clippie - Cupcake - Sydney So Sweet
Felt Clippie - Cupcake Boutique Hair Clip
$5.99 $3.99
Ruffle Lavender Cupcake Regular Leg Warmers for Girls
Ruffle Lavender Cupcake Regular Leg Warmers for Girls
$9.97 $6.97
Ruffle Cupcake Multi Regular Leg Warmers for Baby, Toddler, Girls
Ruffle Cupcake Multi Regular Leg Warmers for Baby, Toddler, Girls
$9.97 $6.97

Birthday Outfits for Girls | Cute Birthday Outfits | Unicorn Birthday Outfit

Find a first birthday dress, unicorn birthday outfit, and many other cute birthday outfits for your little girl in our online birthday boutique! Your daughter will be the belle of the birthday ball in a girls party dress from Sydney So Sweet! Our online birthday boutique collection is here to bring you a wide variety of stylish dresses, tops, unicorn tutus, and tutu party favors that your little girl and all of her friends will look adorable in. Celebrate her special day in Sydney So Sweet Style!

Shop our online store today to find the birthday outfits and birthday dresses that ensure you her outfit will be the cutest!

Variety & Selection

You can find a first birthday dress, cute unicorn dresses, unicorn tutu sets, accessories, chiffon leg warmers, and tutu party packs in our Birthday Collection. We always include the newest fashion trends and clothing for every birthday, special event, and holiday for your little girl! 

Sydney So Sweet is a top-rated online seller of birthday outfits for girls, children's boutique clothing, and baby boutique clothing items. We carry trendy boutique clothing and hair accessories at wholesale like prices. You can purchase an entire birthday outfit for under $20! 

Size & Fit

While most of our clothing runs true to size, double check the details on each of our cute birthday outfits and birthday dresses to make sure you get the perfect fit. If you’re unsure, we have an easy-to-use sizing chart that’ll tell you exactly which size you need to order. Our clothing is made from soft, stretchy cotton that will be perfect to wear all day on her special day and beyond. Keeping your child comfortable yet also stylish for affordable prices on her birthday is our mission. 

Explore our girl’s boutique clothing online for fashion that you can’t resist for your little girl for her birthday, or for any other day! Order today and get FAST and FREE shipping on all orders!

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