Black Friday Sale: 15% off the entire site
Valid November 24th – November 26th, 2017. Cannot be combined with other discounts or coupon codes. Not valid in combination with the volume discount. Coupon cannot be used toward the purchase of gift certificates. Valid on www.spreadshirt.com. Not valid in Spreadshirt's Partner Shops.
SAVE17
Redeem code now

1st Birthday T-Shirts: Because First Birthday Outfits Are the Most Important Ones

Filter
x

Your baby’s first birthday shirt

Time flies. It seems like it was only yesterday that you were preparing the nursery room for the arrival of your little bundle of joy, and now here you are, searching for your baby’s perfect 1st birthday outfit. Let us help you make this celebration a little more special.

At Spreadshirt you can find multiple 1st birthday t-shirt designs. You just need to pick the one that fits the personality of your little darling best. Whether you are looking for a first birthday outfit for a girl or 1st birthday onesie for a boy, we have it all! Now you don’t have to waste any more precious time on searching for 1st birthday t-shirts, that you could use for planning and organizing the party.

Get 1st birthday shirts for the siblings too

Of course, it is the littlest one’s big day, but we can bet that the siblings want to participate too. Make a perfect combo for the cutest family pictures with adding big brother shirts and big sister tees to the mix for the older kids.

If you are planning an outdoor party, or are going to a special event or location, we recommend getting 1st birthday t-shirts for the parents. Or even for the entire crew of aunties, uncles, grandmas, grandpas…well, for everyone! You can rest assure you will be the center of attention and people will stop you in the middle of the street just to ask you where you got those amazing 1st birthday t-shirts.
So, don’t hesitate and check out our Marketplace for the best 1st birthday t-shirts now!

Apply filter
Filter
    Sort by
    Relevance
    Newest
    1st Birthday Monkey Girl Baby & Toddler Shirts - Toddler Premium T-Shirt
    Level One Complete First Birthday - Baby Lap Shoulder T-Shirt
    Safari 1st Birthday Baby & Toddler Shirts - Toddler Premium T-Shirt
    Argyle Golf 1st Birthday Baby & Toddler Shirts - Toddler Premium T-Shirt
    Firecracker 1st Birthday T-Shirt - Baby Lap Shoulder T-Shirt
    Blooming 1st Birthday Baby & Toddler Shirts - Baby Lap Shoulder T-Shirt
    1st Birthday Construction Truck Baby & Toddler Shirts - Baby Lap Shoulder T-Shirt
    1st Birthday Cupcake Kids' Shirts - Kids' Premium T-Shirt
    1 - Happy Birthday - Golden Number - Women's Scoop Neck T-Shirt
    BIRTHDAY BOY 1 - Baby Lap Shoulder T-Shirt
    1st Birthday Dinosaur Baby & Toddler Shirts - Toddler Premium T-Shirt
    1st Birthday Princess Kids' Shirts - Kids' T-Shirt
    Pink Ladybug 1st Birthday Baby & Toddler Shirts - Baby Lap Shoulder T-Shirt
    One Year Old First Birthday - Baby Lap Shoulder T-Shirt
    White Its my 1st birthday-boy Toddler Shirts - Toddler Premium T-Shirt
    Money 1st Birthday Kids' Shirts - Kids' T-Shirt
    Tiara 1st Birthday Princess Baby & Toddler Shirts - Toddler Premium T-Shirt
    Baby's 1st Birthday Daisies Kids' Shirts - Kids' T-Shirt
    I Can't keep Calm I'm One - Kids' T-Shirt
    Celebrating 1st Birthday - Kids' T-Shirt
    1st Birthday Baby Girl Owl Kids' Shirts - Kids' T-Shirt
    I'm This Many One Birthday - Toddler Premium T-Shirt
    1st Birthday Rainbow Kids T-shirt - Kids' T-Shirt
    1st Birthday Boy Baby & Toddler Shirts - Toddler Premium T-Shirt
    1st birthday - I'm one Baby & Toddler Shirts - Baby Lap Shoulder T-Shirt
    1st Birthday Monster - Baby Lap Shoulder T-Shirt
    cute little blue monster with red balloon Baby & Toddler Shirts - Baby Lap Shoulder T-Shirt
    clowns_happy_birthday_c_1 Kids' Shirts - Kids' Premium T-Shirt
    1st Birthday Baby T-shirt (Cowgirl) - Kids' T-Shirt
    my first birthday Baby & Toddler Shirts - Toddler Premium T-Shirt
    Mardi Gras 1st Birthday Baby & Toddler Shirts - Baby Lap Shoulder T-Shirt
    It's My First Birthday - Kids' Premium T-Shirt
    Can U Dig it? I'm 1 - Baby Lap Shoulder T-Shirt
    Valentine Bunny 1st Birthday Baby & Toddler Shirts - Baby Lap Shoulder T-Shirt
    1st Birthday Whale Baby & Toddler Shirts - Baby Lap Shoulder T-Shirt
    1st Birthday Airplane Kids' Shirts - Kids' Premium T-Shirt
    My 1st Birthday Baby & Toddler Shirts - Baby Lap Shoulder T-Shirt
    1st Birthday Giraffe Baby & Toddler Shirts - Baby Lap Shoulder T-Shirt
    1st Birthday Monkey Baby & Toddler Shirts - Baby Lap Shoulder T-Shirt
    1st Birthday / crown Baby & Toddler Shirts - Baby Lap Shoulder T-Shirt
    1st Birthday Kids' Shirts - Girl’s Ruffle T-Shirt
    1st Birthday Monster Baby & Toddler Shirts - Baby Lap Shoulder T-Shirt
    I'm One Comic Book Baby & Toddler Shirts - Baby Lap Shoulder T-Shirt
    1st Birthday Cupcake Baby & Toddler Shirts - Baby Lap Shoulder T-Shirt
    Candy Corn 1st Birthday Baby & Toddler Shirts - Baby Lap Shoulder T-Shirt
    the big one - 1st first Birthday Party Baby & Toddler Shirts - Baby Lap Shoulder T-Shirt
    Kid's 1st Birthday Shirt - Toddler Premium T-Shirt
    Wild One Kids' Shirts - Girl’s Ruffle T-Shirt
    Happy 1st Birthday Kids' Shirts - Kids' Premium T-Shirt
    Halloween Kitty 1st Birthday Baby & Toddler Shirts - Baby Lap Shoulder T-Shirt
    1st birthday girl - Baby Lap Shoulder T-Shirt
    Dinosaur 1st Birthday Baby & Toddler Shirts - Baby Lap Shoulder T-Shirt
    Unicorn 1st Birthday Baby & Toddler Shirts - Baby Lap Shoulder T-Shirt
    ONE-I-E-I-O Baby & Toddler Shirts - Baby Lap Shoulder T-Shirt
    Ahoy Matey 1st Birthday Baby & Toddler Shirts - Baby Lap Shoulder T-Shirt
    Robot 1st Birthday Baby & Toddler Shirts - Toddler Premium T-Shirt
    First Snow | 1st Winter T-Shirts - Men's Premium T-Shirt
    It's My First Birthday - Kids' T-Shirt
    White Its My 1st Birthday-girl Toddler Shirts - Toddler Premium T-Shirt
    January 2017 1 Year Of Being Awesome - Men's Premium T-Shirt
    New