Big sister birthday Instagram captions are a fun way to express what you think about your sister who celebrates her birthday today. These cute captions show love and affection toward her. The good thing about this is that it will make your sister feel special.
Big Sister Birthday Instagram Captions
Sisters are the sweetest nest, cherish the bond of sisterhood, and Happy birthday to my adorable big sis.
From baby sister, to cool big sis ✌🏼️ Happy Birthday.
Happy Birthday, my second-oldest little sister! You’re the best big sister I could ask for. I only hope that you always feel loved and appreciated, no matter how old you are 😘
I’ve been so lucky to have a big sister who’s been there for me from the beginning. With you by my side, I can’t fail. Happy Birthday!
Being a Big Sister is harder than I expected… But also really fun.
& she’s off! Hope you keep big-sistering us well into the ’20s (and beyond) 💗 Have a great day & thanks for always being there for us.
My sister is getting old, but my love for her will never age. Happy Birthday!
These are the moments we treasured when you were born. Happy birthday, little sister.
It’s your birthday, that means it’s officially time to start planning my next bday.
It’s your birthday. It’s our job to embarrass you. 😂
Big big BIG sister birthday! Cheers to you!!
Hey big sis, I’m so glad to celebrate your birthday with you. I love you. Happy Birthday.
Happy birthday big sister! You are the best mentor and role model I could ever ask for. And I’m so happy that you let me be your mini-me. I love you so much!
HAPPY BIRTHDAY, SISTER! we may not share the same parents but we share the same sense of humor and we always will #tbt to when we were kids and I thought you were cool AF.
As you turn another year older, may you always remain the little sister we remember and celebrate with. Happy birthday to my favorite big sister!
Happy birthday to my little sister, the best big sister 💚
When your big sister is all grown up and getting married.
Siblings are your chosen family. They are what you grab onto when your birth family lets go. Happy Birthday, Sis!
Born on my B-day and now I can leave my legacy! Thanks for making me your younger sister, happy birthday big sister.
To my favorite sister ever, who always knows how to cheer me up. Happy birthday!
It’s your 21st birthday. That makes me the oldest in our family for a whole year.
Happy birthday to my awesome big sister! You’re not old, you’re just awesome 😍 you’ll always be my best friend and I will never say no to an early birthday run through the sprinklers. Hope today
Happy Birthday, Big Sis! I love you to the moon and back.
Destiny is a matter of attitude. You get to choose your own, every day. #HappyBirthdaySister
My little sister is turning 7 today, she has always been the coolest, most stylish kid on the block. Here is to many more years of fun!
I’ll always be the little sister—yours, that is. Happy birthday #sis #bdaygirl #happybirthday
Happy Birthday to my big sister, the one who has been there for me no matter what.
It’s your day and we’ll be the best accessories! Happy 21st birthday, Sis!
As of today, you’re no longer a little sister. Congratulations on turning 21. I wonder what new things you will make the world a better place.
Today is my sister’s birthday. And since she’s 10 years older than me, it always stumps people when I tell them her age. Happy Birthday, Sylvia!
May your day be filled with big smiles, big laughs, and deep belly laughs.
If you didn’t believe in miracles before, welcome to the club #sisterday
It’s your birthday! You mean the world to me & I want to thank you for always being there, supporting me, and pressing play on my new song even though it’s not quite finished yet.
Wow, it’s really been a year since we *gasp* met. All we know is we’re definitely not 1,000 days younger. #BigSis #HappyBirthdaySis
The best things in life are made sweeter by someone being sweet to us. Happy Birthday. A big sister
HBD to my Big Sister. Sometimes @lydiablaise you’re a terrible influence and I don’t know how I turned out so normal 😉 #littlebro #birthdaygirl…
You’ve always been there to protect me, cheer me up, and even finish my fries. Happy birthday, sis.
So excited to celebrate my big sister…the one who always makes me laugh and twirls with me on the dance floor. Happy Birthday.
Thank you for being the amazing big sister. Happy birthday to my favorite human!🎂#sisters
I’m so glad we found each other. I have a sister, a best friend, and a superhero all rolled into one. You’re going to save the world someday, little girl. Happy birthday, sis.
This year I’m blessed enough to celebrate with my amazing little sister! 3 years ago today she was born into this world. Happy Birthday, sweet baby girl 💗 You are my baby forever and I love you more than words can describe
You are my favourite person, favorite sister, the best thing that ever happened to me. Happy birthday.
You’re my best friend and biggest cheerleader—thank you for always being there when I need you! #happybirthdaysis
Happy Birthday to my wonderful big sister! I hope your day is as special as you are. 🎂I love you Sista!!
Happy birthday to my favorite sister. Hanging out with you is always the best. Thanks for helping me put up with our annoying brother!
Happy Birthday to the sweetest and most thoughtful big sister!! This year is going to be great, I can feel it:)
I didn’t lose a sister, I gained a friend. There will never be a time in my life when you’re not my sister. #happybirthdaysister
Cheers to the most adorable older sister—one of my dearest kindred spirits.
What’s your big idea? Happy birthday, you have been my biggest.
Sister—if you need me, I’ll be at the coffee shop. I’m obviously not celebrating today because if I wanted to celebrate my birthday I would have wished for it before the universe gave me the whole sister thing.
It’s been so great to grow up with a girl as incredible as you. So glad we can celebrate another wonderful year of life on this planet together.
You put up with my messy room, love me through my teen years, and cheered me on when I initially joined the PTA. I wouldn’t trade this for anything. Happy birthday sweet sister.
May your life be as beautiful as a butterfly. Happy birthday, sister, I love you.
Happy birthday to the coolest ‘big’ sister a little brother could have. Sis, you’re a big part of this family and we love you so. Here’s to a very special birthday—and a lot more
I couldn’t imagine a better big sister than you. You’ve always done everything for me and I love you so much #birthdaygirl
Happy Birthday, Big Sis! You’ve been there for me when I needed you the most, and although we only have a year’s age gap, you’ll always be my big sister.
Celebrating my big sister today with all the love in the world, happy birthday!
Does it say big sister on my shirt? Hey, that’s weird. . . I hope my parents didn’t get me another one of these. #birthdaysister
Everyone’s favorite big sister turns 12 today! At this rate, she’ll be getting her learner’s permit before I know it.
Happy birthday to my big sis, my #1 bestie. I’m so grateful to have you in my life!
Big sis! You were always #bossy, but you showed me how to be strong and break down barriers. Now you’re an impressive #womanboss.
To my favorite big sister – Happy birthday.
Birthday wishes for my sister. Hope it’s an incredible one!
Happy birthday to my sweet little sister, I hope you had more fun than me at your party!
Always be there for your younger sibling—and vice versa. After all, nobody’s too cool for a big bro/sis hug from time to time.
Lil Sis can’t wait to taste the cake—& not just to make sure it’s good.
Today is your day, and we honor you for who you were, who you are, and who you will always be.
You’ve been a great big sister & best friend, I’m so proud to be your baby sister #HappyBirthdaySis
You’re the best big sister ever. With you, it’s always been my favorite show. Thanks for being awesome. #HappyBirthdaySister
To the big sister that remembers what it’s like to be a little sister, and how much I looked up to you. I’m grateful for all of your support, love, and being my biggest fan. Happy birthday from your Lil sis.
Happy Birthday, Big Sis! May the next year be filled with good times and good memories.
You’re my best friend, my shoulder to lean on, and most of all – My favorite person to laugh with. I’m lucky I have you as a sister. Happy Birthday, sis!
I have the best big sister ever ❤️
Happy Birthday to my big sister!!! I am so glad you are my sister!!!! I love you!!!!!😊
Did you know that [big sister/brother], [name], [birthdate] is [age] years old today!
You are my best friend, my human diary, and without you, I’d probably be climbing the walls. Happy Birthday, Sis.
There’s no one that can put a smile on my face quite as you do. It’s your birthday, so this one’s for you, sis.
All of your birthday wishes have been heard, but instead of telling each one, I want to say, happy birthday sis ❤️
Thanks for being the best sister in the world, happy birthday my dear big sister, I love you.
Birthday goals to you big sis!🎉
Big sister birthday captions for her. Happy birthday, Sister.
Funny birthday caption for sister. Here you will get the best funny sister captions for happy birthday
Happy Birthday to the best big sister a little brother could ask for. Thank you for always being there with a hug and a smile on your face.
Happy Birthday to my favorite older sister!! You make me laugh like no one else can! Your fierce protectiveness and silly sense of humor has raised me up. I love you #happybirthday
So much fun to hang out with you and celebrate your first birthday as a big sister.
When you’re all grown up, your sister will still be the annoyingly perfect big sister that she was when you were kids.
Sisters make the best friends. Happy Birthday.
Celebrating my big sister. Beloved leader, wonderful partner, rockstar mother—and the person responsible for getting me hooked on Gilmore Girls in the first place. Here’s to your next adventure — somewhere out there!
The smartest, strongest, most generous & kind person I know… all wrapped up in one single, beautiful sister! Happy birthday! #happybirthdaysis
Yes, I’m the bigger sister. No, I’m not bossy. Yes, I’m smarter than you!
Your sister is, and will always be, your best friend. Happy birthday to you!
You are wise beyond your years… Don’t ever act like it.
You’re my blueprint for what makes a truly awesome older sister—for the little sisters who will come after me, and for all the big sisters out there. Happy Birthday.
When your big sister gives you the world, have fun creating it🌏
Happy birthday to my big sister, the first woman I ever wanted to be like, who always challenges me to be better.
Happy birthday to my favorite big sister A, I couldn’t ask for a better person to go through life with!
Getting older is great, just as long as big bro doesn’t take it personally. Happy Birthday, Sis!
It’s your birthday, it’s my birthday, today I want ice cream. Happy Birthday, sister!
So much fun hanging out with my big sister today, and she even let me stay up past bedtime to see her blow out her candles. Thanks, Alison! 🎉
Happy birthday to my favorite big sister in the entire world.
I’m so excited to be a part of your special day!
happy birthday big sister. it’s been a wild ride so far, and here’s to many more adventures to come!
May your day be filled with sunshine and cheer, you are the best big sister ever, Happy birthday!
Shoutout to my big sis yesterday. I love you to the moon and back and always will. You’re an endless source of inspiration for me and one day I hope I can be as cool as you 💕 Happy Birthday
It’s official: I’m part of the cool crowd, and she’s just my sister. #HappyBirthdaySis
Sister is another word for a best friend because no one else will ever quite understand you like a sister can. Here’s to many more in the years to come! #HappyBirthdaySister
Getting ready to take these kids trick or treating, I feel like karma just dressed me up as a big sister.
Happy Birthday to the best big sister, the most morally flexible person I’ve ever met.
Making these moments last is what makes life so sweet. #Happybirthdaysis
So I got you a portable hot tub. You can thank me later. Happy birthday, sis!
Hey big sis, here’s to the next 30 years (and counting) of #bigbrovisions. Happy Birthday!
I can’t wait to go on our next family vacation with you!
Growing up with you has taught me many things. Mostly that you are probably the only person who loves life more than I do. HAPPY BIRTHDAY!!
What is sweeter than a surprise birthday cake? Having a big sister who knows the answer is you.
Today is this gorgeous lady’s birthday and she’s been a big sister for 28 of those years…can you believe it! I can’t. All of her big sisterly advice.
So excited to celebrate my little sister turning 11, can’t wait to see what she does with this year!’
When I hug you, I feel like I’m hugging the entire world. Happy Birthday to my big sister!
Happy Birthday to my first Big Sister! And also my #1 choice for a playdate! -Molly
Sharing the top spot on my birthday cake is always fine by me. Happy (almost) Birthday, little sis! I’ll make sure you get the most candles too.
Words cannot describe how your love for me has grown over the years. Thanks for the laughs, the tears, and the unconditional support. Happy birthday to my favorite sister.
What’s the best gift ever? Being your sister. Happy Birthday to my best friend. #sisterlove.
Here’s a big hug to make your birthday a little less painful 😉
Belated happy BIRTHDAY to my favorite little sister on the planet 💕 #2 #thirdtimeischarmed.
Be your own kind of beautiful. There is no one else in the world quite like you.
Thanks for everything you do. I think I’m most inspired by your optimism. Wish we were together to celebrate tonight.
I came out of my mom’s stomach on her birthday and I wanted you to know I plan to make this day as special as possible. Happy Birthday, Big Sis!
Happy 32nd birthday to my number 1 sister @kristeneigwen. I’m so grateful for you and everything you do on a daily basis to make me and our whole family feel loved and supported.