What to Write in A Kid’s Birthday Card? (The Ultimate Guide!)

Written By Sarah Y

Are you stuck thinking about what to write in a kid’s birthday card? As parents, aunts, uncles, and friends, it can be daunting to write the perfect message in a child’s birthday card. You want to make them feel special, but it’s not always easy to write something that resonates.

Whether you’re looking for a message for younger kids, tweens, or teens, we’ve got you covered. We have compiled 60 different options that are sure to put a smile on their face. Read on and you’ll quickly find an answer to what to write in a kid’s birthday card!

Birthday Wishes For Younger Kids (Ages 1-6)

  1. Happy birthday! Now that you’re a year older, you’re practically a grown-up! A very tiny grown-up, but still.
  2. You know you’re getting old when your birthday cake is on fire and you don’t even care because you’re too excited to blow out the candles! Have a blast, birthday kid!
  3. You’re like a superhero – but instead of a cape, you have a big smile that can light up the room! Happy birthday to the most amazing and positive kiddo out there.
  4. Today is your day, so let’s eat cake for breakfast, lunch, and dinner! (Maybe with a few vegetables squeezed in there when the grown-ups are watching…)
  5. If there were an award for the coolest kid ever, you’d definitely win it. Happy birthday!
  6. Birthdays are nature’s way of telling us to eat more cake! Wishing you a sweet and magical birthday full of all your favorite things.
  7. You’re not getting older, you’re increasing in awesomeness! Here’s to a birthday that’s even more magnificent than the last!
  8. Celebrate your birthday with reckless abandon – you can always apologize later!
  9. Happy birthday, you little unicorn! May all your birthday wishes come true and your year be filled with rainbows and glitter.
  10. To a kid who’s growing up too fast but still has plenty of childhood magic left in them – have a happy, fun, and exciting birthday!
  11. Have a magical birthday filled with cupcakes, balloons, and lots of fun!
  12. Wishing you a happy birthday filled with lots of love, laughter, and excitement.
  13. On your special day, I hope you never stop believing in the magic of childhood. Happy birthday, kiddo!
  14. You’re sweeter than a unicorn riding a rainbow! Wishing you a special and fun-filled birthday.
  15. Hooray! You’re another year older and even more awesome than before! Wishing you a happy and spectacular birthday.
  16. Sending you big hugs and warm wishes for a birthday even more awesome than you are.
  17. On your special day, I wish you all the happiness, joy, and fun that you deserve. Happy birthday!
  18. You’re not just older, you’re also wiser! Here’s to another year of fun and adventure.
  19. Congratulations on completing another year of being awesome! I hope you have a fabulous birthday.
  20. Hooray for another year of fun, laughter, and being super awesome! Have a fantastic birthday filled with endless happiness.

Birthday Wishes For Tweens (Ages 7-12)

  1. You’re not just getting older, you’re also getting wiser! You might not be a genius yet, but you’re pretty close.
  2. Your birthday may only last for 24 hours, but your coolness lasts all year long!
  3. Happy birthday to a tween who never gives up, no matter how many times they’re told to clean their room!
  4. Still trying to figure out what to wear on your birthday? Same. I guess we’ll just have to rock our favorite T-shirts and jeans like the cool kids we are!
  5. Happy birthday! The world is a better place with you in it. Plus, you make it look cool!
  6. On your birthday, get ready for a whole day filled of nothing but FUN! (Sorry, homework, but you’re not invited.)
  7. Do you hear that? It’s the sound of your amazingness getting louder every year! Happy birthday to the world’s coolest tween
  8. Congrats on another year of being awesome! Don’t worry – those awkward tween years will be over soon. In the meantime, let’s eat some cake!
  9. Your birthday is like a theme park – full of excitement, joy, and plenty of sugar-highs! Enjoy the ride, kiddo!
  10. May your birthday be filled with surprises, laughter, and plenty of confetti! Keep being your amazing self.
  11. Birthdays are like pizza – even if they’re bad, they’re still pretty good! Wishing you a fun-filled birthday with lots of pizza.
  12. Happy birthday to the coolest tween in town! May all your dreams and wishes come true.
  13. May your birthday be as epic as an adventure in a mystery land filled with mermaids and unicorns!
  14. Happy birthday to an extraordinary tween with an amazing personality, unique style, and an abundance of coolness!
  15. Remember, life is too short to be boring. So let’s celebrate your birthday with lots of laughter, fun, and unforgettable moments!
  16. I wish you a year full of endless joy, love, and new experiences that will leave you breathless. Happy birthday!
  17. Another year older, another year wiser. Or so they say. Anyway, happy birthday, kiddo!
  18. Wishing you nothing but the best on your special day! Have a fantastic birthday with lots of love and laughter.
  19. Here’s to another year of laughing at your jokes, even if they’re not funny. Happy birthday to the coolest kid in town!
  20. As you blow out the candles on your cake, don’t forget to make a wish for all the amazing things you want to achieve. Happy birthday!

Birthday Wishes For Teens (Ages 13-19)

  1. Happy birthday, teen! You’re one step closer to being an adult – but let’s not think about that right now. Let’s eat cake instead!
  2. Congrats on being another year closer to legally driving, voting, and paying taxes! You’re practically a grown-up now!
  3. It’s time to celebrate being a teenager – full of sass, style, and an endless supply of eye-rolls. Happy birthday!
  4. On your birthday, don’t forget to make a wish for all the impossible things you want to achieve. Then go make them happen!
  5. Let’s raise a birthday toast to a teen who’s just as amazing on the inside as they are on the outside!
  6. Wishing you a birthday full of good friends, good memories, and cake that’s worth every calorie.
  7. Happy birthday to a person who’s both wise beyond their years and also still young enough to believe in unicorns. Keep being you!
  8. Cheers to another year of being a cool teenager who’s destined for greatness! Enjoy your birthday to the fullest.
  9. Happy birthday to the hottest, trendiest teenager around! Just remember, with great power comes great responsibility.
  10. On your birthday, remember that teenage years are like a rollercoaster ride – they can be wild, unpredictable, and sometimes a little nauseating. But they’re also full of excitement, growth, and plenty of Instagram-worthy moments!
  11. You’re another year older and still as fabulous as ever! Keep shining bright, birthday teen!
  12. Congrats on another lap around the sun! May your birthday year be filled with all the things that make you happy – whether it’s perfect selfies, Starbucks drinks, or TikTok dances.
  13. Happy birthday to the coolest person in the room (and if nobody else is in the room, then that still counts!). You’re gonna rock this year, teen!
  14. Happy birthday to a fantastic teen who continues to grow wiser, funnier, and more spectacular every year!
  15. May your life be as full of adventures as your birthday is full of cake! Wishing you a fantastic day filled with joy, laughter, and special memories.
  16. You may be a year older, but you’re still as young as ever. Have an amazing birthday filled with all the things you love.
  17. Happy birthday to the coolest and most stylish teen around! May your birthday be as amazing, unique, and fantastic as you are!
  18. Here’s to another year of making the world a better place and being the best person you can be. Happy birthday, kiddo!
  19. Cheers to another year of maturity, growth, and a new level of awesomeness! Happy birthday!
  20. May your birthday be filled with lots of love, joy, and the realization that being a teen is AWESOME!

Never worry again about what to write in a kid’s birthday card!

Writing a birthday card message for kids, tween or teens can be a challenge. With these 60 options, you’re sure to find the perfect message for your little (or big) birthday star. From heartfelt messages to silly and sarcastic ones, these messages will make them feel special on their big day.

We hope we helped you figure out what to write in a kid’s birthday card. So go ahead, grab a card, and let the birthday celebration begin!

Before you go...

All set to start planning your party? If you're looking for more party planning tips, check out:

How to Politely Request “Money in Lieu of Gifts” for Child’s Birthday
How Far in Advance to Send Out Kids' Birthday Party Invitations?
The Hilarious Chaos of Kids’ Birthday Parties!
120 Special Heartfelt Birthday Wishes for Boy