6th Birthday Captions for Instagram with Quotes

To celebrate a birthday as unique as a 6th year birthday, there are a lot of fun things you can do for your little one, like buying ice cream, cakes and playing some fun games.

One of the very interesting things you can also do is create a milestone post on your social media or share a few photos and memories about how your little one has grown. Showing the world how much they mean to you.

However, to make your post the perfect one is to complete with it the perfect birthday caption. A birthday caption is much more than just words, It sends the right message of how we truly feel about our adorable kids to the public. In the spirit of birthday and fun, we’d like to share some of our amazing birthday captions with you.

For Your Son

Related: 12th Birthday Captions

It seems like just yesterday I was ushering in his cute little face into this world… Now he’s a smart, handsome, and lovely kid. Happy birthday, sweetheart.

Happy birthday, buddy! You’re the coolest 6-year-old and the best son ever. 😘Love you big.

Happy birthday to my son, may all your wishes and dreams come true. I love you!

Celebrating this treasure of a human being. ❤️ Happy birthday, sweetheart.

Happy Birthday to our little buddy and all his big dreams ❤️ # Love you to the moon and back.

Happy birthday, sweetheart! I love you so much! You’re the best boy in the world and my dearest son. I wasn’t ready for how much you would change my life when you were born, but now I’m loving every change you’re making.

Happy 7th birthday to my lovely son. I remember the moment you were born more vividly than anything else in my life. You have been on this planet for 6 years and I’ve had the fortune to see you grow from a tiny baby to a little smart kid, love you big.

For Your Daughter

🎈🎉🎂My little girl is turning six years old today! We’ve had so many days together, I love you so much. Have a blast, dear.

Today is my little girl’s 6th birthday. She’s looking forward to an awesome day, and I’m looking back at the beauty of it all 🤗.

Today my little angel turns 6 years old and I’m reminded what an absolute star she is, with a heart of pure gold. Love her big.

Happy 6th birthday to my little baby girl, we’re going to have so much fun! #birthdaygirl.

Turning six is a big milestone, but being your mom makes it even more special for me. I love you so much. Happy birthday.

Some things change, but my love for you never will. Happy birthday to my treasure! Love you! 💙.

♡♥♡♥🎈Happy Sixth Birthday to my favourite little princess in the world. I can’t even begin to explain how lucky I feel to be your father! It’s been a ton of fun to watch you grow up.

Happy Birthday to my sweet little angel!  💎❤️Love you loads.

Hey world, my adorable kid is 6 today! I love her so much.

Happy Birthday to my kid! You bring out the best of me because you are so adorable. 🎈🎂🎁

For Your Sister

Happy 6th birthday to the cutest sister a person could ever ask for. Love you so much.

Happy 6th birthday, little sister! You’ve taught me so much and you give me a good time with you. I’m so blessed to have you as family. Love you! 😊 ❤️ 💕

Happy Birthday to my cute little sister ❤️ You’re such a beautiful girl full of joy.

6 years ago today, my little sister was born. Happy birthday, sister! Wishing you tons of fun over the next year.

Happy birthday, my cute little sister. Looking forward to watching you grow up!

With my ♥︎ sister being the coolest sister a girl could have, I’m saying a very Happy birthday, my sweet angel 🎈♥︎.

🎈🎉🎊Another year has passed, happy Birthday darling girl! Keep growing strong and healthy until the day you grow up to be one beautiful lady!😍

Great things are happening today! My Little Angel is 6 today, love you hugely.

Happy 6th Birthday to my baby sister! May your life be filled with love, laughter, learning, and of course 🍰.

HAPPY BIRTHDAY to my beautiful sister💕_🎈🎁Cheers to you sweetie, I can’t believe you’re 6 already.

For Your Brother

I can’t believe my brother is 6! Happy Birthday, baby bro! Heart you big. #birthdaycake.

6 years ago a perfect bundle of joy came into my life as my little brother. I’ve been blessed beyond words – thank you for the past 6 years and many more to come little man! Happy 6th birthday! #happybirthday.

My little playmate just turned 6 years old. I’m so happy to celebrate his birthday with so much love and joy.

It’s my brother’s birthday today.. he always makes me laugh and smile with his funny expressions 😁 Happy birthday, dear, love you big.

Wishing the happiest of birthdays to my little brother! 🎂 Love you big, dearest.

My little hero is growing up from a little baby to a smart 6-year-old. Happy Birthday, buddy! Love you ❤️.

Many happy returns of the day to my awesome brother who is now 6. Love ya and wish you the best, bro ❤️ #happybirthday #6th.

For Your Niece

Happy 6th Birthday sweet niece! I love you forever! 😘 #birthdaykids.

Wishing my cute nephew a lifetime full of birthdays! Love you big. happy birthday.

Turning 6 is pretty huge news, especially for my awesome little angel. I love you so much and I’m so very proud of you.

Happy Birthday to my little niece 🥰 I hope you have a birthday full of everything that’s fun. #niece #happybirthday.

My handsome little niece is celebrating his sixth birthday today, can’t wait to celebrate many more with her. ♥️🎂🎈☮🥳👱🏽❤️.

It’s one thing to have a niece, but it’s something else to have a beautiful and smart one turning 6. Love you, sweetheart.

The best reason for birthdays is for taking a moment to stop and see how much we’ve grown. 🎈🎂Happy birthday sweet niece.

So happy to celebrate my beautiful niece turning 6 today! 🎂🎉 I’m so lucky to have an amazing nice like her, happy birthday dear.

Happy Birthday to my niece who brings so much joy and enthusiasm every time I see her. I love you big.

Happy Birthday to the sweetest and coolest niece ever! Love you loads! 🎈🎂.

For Your Nephew

Happy 6th Birthday to the world’s cutest nephew! I hope this year is a blast and wish you and your family all the best. #happybirthday#nephew.

What a special day for my nephew! He’s full of life and joy. We love you and wish you the best big 6th birthday ever!

As my nephew turns 6 years old, I can’t believe how big he is getting. He was so little when I brought him home from the hospital as a baby. Now he is a little boy with a beautiful soul, Happy birthday, dear.

Wow, it is hard to believe that this strapping young lad just turned six! Happy birthday, sweet nephew 🎂 Enjoy the big day.

🎉🎈☀️🍂 Happy 6th birthday, little guy! 😁. Couldn’t be more excited to spend this special day with you.

6 years ago this day, I became a proud uncle to you. I can’t believe that you are now 6. It feels like yesterday when your mom brought you home as a newborn baby. Happy birthday, dearest.

Happy birthday little man! Wishing you nothing but the best life has to offer. You are awesome in ways I never could be, don’t forget to enjoy today to its full

For Your Cousin

Celebrating my little cousin sister’s 6th birthday today. I really miss them and wish them the best of fun.

Soooooo excited about my cousin sister’s 6th birthday! Happy birthday, sweetheart!! 😍🎈.

Wow, my sweet cousin is turning six, and I can’t believe how big he’s gotten! You’re the best cousin anyone could ask for and I am so excited to celebrate today with you!!! I love you.

Happy 6th birthday to my cute cousin! Have a great lot of fun today.

Happy Birthday, Baby Princess 👸🏼👧🏼👶🏽👦🏻. Love you big.

It’s time to blow out the candles and make a wish, Happy birthday sweet cousin.

Happy 6th Birthday to my little cousin — Love you so much, keep being amazing 😘.

Love having a beautiful little cousin like you to celebrate with! Happy Birthday.

Happy Birthday to my sweet little amigo. May you have many more to come! 😍🎂.

6 years of love and memories. Love you and a huge happy birthday to you.

For Your Boss’s Daughter

Celebrating the beautiful daughter of my boss. Happy birthday and have a lot of fun, today.

Happy 6th Birthday to the cute daughter of my boss ✨💞. Wish you luck and happiness. #HBD.

🎂🎉🎊 A happy birthday to the amazing daughter of my boss! Have a lot of ice cream and fun.

Happy 6th Birthday to the sweetest, most generous girl ever! #happybirthday #sweetiepie.

Happy 6th Birthday to the sweetest, smartest little princess. I ❤️ you!

My boss’s daughter is turning 6 today with a cake and a face full of smiles.

Happy birthday to my boss’s daughter, may every birthday always be celebrated with laughter and happiness. Hope you all have the happiest time of your life on this wonderful day.

Happy 6th birthday to my boss’s daughter! I’m so blessed to have such a wonderful boss.

Happy 6th Birthday to my boss’s daughter, I love you!! *_* 🎂 #mybossdaughter.

Happy 6th birthday, sweet girl! you are the sweetest kid, have fun today.

For Your Boss’s Son

Happy 6th Birthday to the best boss’ son! I cannot believe how much you have grown!! Love you big.

Happy birthday to my incredible boss’s Son! You are the best and I am so proud of you.

To my little buddy, wishing you a fun-filled birthday filled with joy and love. I’m so glad you’re in my life! #happy6thbirthday.

Happy 6th birthday, sweetheart! You’re such a great kid – I love you ❤️ Have lots of fun today.

So happy to celebrate this little man’s special day with you all today. Happy birthday, dearie. #cuteandcreative #bigboy #happybirthday.

Happy Birthday to my little man! You’ve made my life so fun, adventurous, and never boring. I love you more than the moon 🌝 #birthdayboy.

Happy 6th Birthday to the coolest, kindest kid in the world— my boss’s son. Have a lot of fun today, kiddo.

For Your Grandchild

Can’t believe my queen turned 6 already!! Seems like yesterday she was a little peanut 🎂 Happy birthday, sweetheart.

Here’s to lots of laughs and fun as I celebrate my lovely granddaughter on her 6th birthday #birthday #cake #familybirthdays.

I love you because you make me laugh until my stomach hurts and that is the best feeling in the world. Happy birthday, dearest.

So much fun celebrating another one of grandchildren’s birthday’s today with so much love and joy. Happy birthday, wish you the best birthday ever!

Happy 6th birthday to my sweet grandson, perfect in every way. I love you! ❤️😍.

My grandson is 6 today. I’ve loved you since the day you were born, but I love watching you turn 6 even more. Happy Birthday to my big 6-year-old.

My little grandchild is turning 6 today! She’s still very young and gets really excited on her birthdays. Happy birthday to you, sweetheart.

Today is my 6-year-old granddaughter’s birthday, I want to wish you the best in this new and beyond.

My little pumpkin turned 6! Wish you a fantastic year ahead, happy birthday to you dear.

Happy 6th birthday, sweet baby munchkin…I can’t imagine my life without you. I hope you love your day as much as i love you! Till next year!

Happy Birthday to my favorite 6th Grandson!!! Love you, dear!!!

What a day to celebrate this sweet, dear, 6-year-old boy. Happy birthday, dearest. Want to wish you the best.

Wow, six years in the making. Happy birthday to my beautiful granddaughter. I can’t wait for you to blow out your candles and make a wish!

For Your Friend’s Child

My best friend’s child is finally 6!!! I can’t believe it but I’m happy about it 😅I wish you the best.

Let’s celebrate this sweet little boy turning six in Style! HAPPY BIRTHDAY, to my little munchkin, love you loads!

Happy 6th birthday, sweetheart!! You’ve grown up so much in these 6 years—I know you will continue to do great things… may your day be as awesome as you are!

6 years old already? Softest hugs and kisses to you on your special day babe. Happy birthday and have lots of fun today.

Happy Birthday to the sweetest little Angel I’ve ever laid my eyes on 🌟💙❤️😍🎂.

Today I celebrate the life and joy of my friend’S child in her 6th year. Thank you for being your sweet, lovely self. ❤️.

Yall I can’t handle the excitement. Today is my friend’s birthday and she’s turning 6! My! how time flies…Happy birthday, dearest.

Happy birthday to my sweetheart. You are growing up to be a kind, empathetic young boy who is confident. I love you very much and am so proud of you. Have fun, my dear ❤️.

Time flies when you’re having fun😎😎🎈🎉 Happy birthday, sweetheart. #happybirthday.

I’m celebrating my pal child’s name turning 6 with lots of joy and laughter, have lots of fun today.

Happy 6th birthday to my cutie pie kate, thank you for bringing me a great deal of joy ☺️🎂 Have lots of fun.

🎉🎈🎂 Happy belated 6th birthday to my sweet friend’s child! 🍰 I’m so glad and fortunate to have you in my life. I love you big.

Happy birthday buddy! I love you so much baby boy ❤️🍰 Have lots of fun, today.

Happy birthday to one of the wisest, kindest souls I know! You are and always will be a kid at heart ❤️🎂