Baby boy smiles and opens present in a story about captions for first birthday photos
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40 Funny & Sweet Instagram Captions For Your Baby’s First Birthday

You’ll want to remember this forever.

by Kristina Johnson and Katie McPherson
Originally Published: 

There are so many moments you’ll want to capture in photographs during your baby’s first year, and turning 1 is perhaps the biggest milestone of all. If you’re planning to share some special photos on social media to mark their big day, you’ll need some funny, sweet, and sentimental captions for first birthday pictures. (Hey, with all the work that goes into throwing a kid’s birthday party, you deserve to post about it.)

Whether you’re going all out with your celebration or keeping it simple with a smash cake and some family and friends, you’re obviously going to need to take tons of cute photos to remember everything. You only turn 1 once, after all, and you and your child will both want to look back on these special memories someday. Your little one may not remember their party, but seeing all the photos you took and how happy everyone looks, they’ll know just how loved they’ve always been.

Finding the right captions for first birthday photos will help convey the magic of the day, and then, you don’t even have to come up with them yourself. These first birthday captions are perfect for a special baby's big day, whether you want something funny, something sentimental, or something perfect for that epic cake smash.

Sentimental captions for first birthday Instagram posts

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  • You may not remember today, but I'll never forget it.
  • You're the one unwrapping all the presents today, but you're the greatest gift I could ever ask for.
  • When you were born, I thought I couldn't possibly love you any more than I did in that moment. But I was so wrong, because I've loved you more and more every single day since then.
  • I had no idea how much love and happiness could be packed into a single year, until this past one as your mama.
  • Today and every day, I love you more than you could ever possibly know.
  • On your very first birthday, I'm torn between wanting you to stay this little forever, and being so incredibly excited to see how you grow and change as you get older.
  • No matter how grown up you get, I'll always think of you as my sweet little baby.
  • On your first birthday and every birthday to come, may you be filled with as much joy as you bring everyone around you.
  • We've celebrated your first smile, your first giggle, your first step, and now, we get to celebrate the biggest first of all — your very first birthday.
  • It's fun to be one, but then again, every day with you is the best day ever.
  • One year ago, you made me a mom. I'm not sure what I did to deserve the incredible honor of raising an angel like you, but I'm so glad that you're mine.
  • They say the days are long and the years are short, and this first year has certainly gone by in the blink of an eye. Don't grow up too fast, my love.
  • My one-derful birthday baby, I hope you're always as happy as you are on this momentous day.
  • “Don’t you ever grow up, just stay this little.” — Taylor Swift, “Never Grow Up”
  • “Everything she sees, she says she wants. Everything she wants, I see she gets.” — Loudon Wainwright III, “Daughter”

Funny first birthday captions

  • You’re our ONE and only (seriously, we’re never doing this again).
  • You were all I ever wanted, and I still can’t believe you are mine. I also still can’t believe how loud you are.
  • Happy first birthday to you and to my C-section scar. May you both continue to grow and stay strong.
  • I can’t believe we made it one whole year, and tonight I’m going for this glass of wine like you went for that cake.
  • Happy birthday to my baby, who does not even know it’s his birthday and cried all day.
  • You know, they should really make Happy 1 Year Of Keeping Your Kid Alive hats for parents.
  • Here’s to the next year of early mornings, big feelings, and wiping butts.

Literary first birthday captions

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  • “I'll love you forever, I'll like you for always, as long as I'm living my baby you'll be.” — Robert Munsch
  • "When I was one, I had just begun." — A.A. Milne
  • “Today you are you, that is truer than true. There is no one alive who is you-er than you.” — Dr. Seuss
  • “Every day is a gift. But some days are packaged better.”― Sanhita Baruah
  • “All children, except one, grow up.” — Peter Pan
  • “Little boys should never be sent to bed. They always wake up a day older.” — Peter Pan
  • “Children are not things to be molded, but are people to be unfolded.” — Jess Lair
  • “Each day of our lives we make deposits in the memory banks of our children.” — Charles R. Swindoll
  • “Every child born into the world is a new thought of God, an ever fresh and radiant possibility.” — Kate Douglas Wiggin

Instagram captions for first birthday smash cake pictures

  • Fun fact: you don’t need all of your teeth to eat cake.
  • Your first taste of sugar became your first bath of sugar.
  • Let them eat cake! And let them stay little.
  • A first birthday is the perfect excuse to try some cake.
  • Hulk Smash? More like CAKE SMASH.
  • To be fair, I want to eat all of my birthday cakes like this, too.
  • If you can’t blow out the candles on your own cake, you might as well smash it.
  • He can’t say bath yet, so this is how he asked to play in the tub.
  • She’s sugar and spice and everything nice, but for today, mostly just sugar.

First birthdays are sentimental for so many reasons, so be sure to take all the pictures you want to commemorate this special milestone for your family.

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