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100 Awesome Sister Birthday Captions

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Some of the best photos come when you have a fun family birthday. For your sister’s big day we have collected all the best sister birthday captions for your next sister birthday post. So if you are looking for sister birthday captions for Instagram, we have you covered.

We have also included the best sister birthday quotes for Instagram for when someone else has said it best first and funny sister birthday captions to make them smile.

If you like these sister birthday Instagram captions, have a look at our related lists:

Now scroll through to find my sister’s favorite caption for sisters birthday.

Best Sister Birthday Captions

Here are some of our favorite sister birthday captions.

  • Turning my sister’s birthday into a lifestyle.
  • I always make bad decisions on my sister’s birthday.
  • Sisters are joined heart to heart.
  • Life is a journey and you’re enjoying every mile of it.
  • This is the year my sister’s dreams will come true.
  • Move over coffee, today is a day for champagne.
  • There is a fine line between fun and sisters.
  • Here’s to the best birthday for the best sister!
Women with best sister birthday captions
  • In case anyone wanted a sister birthday update, here it is.
  • It feels like I’ve only aged 1 year since my sister’s last birthday.
  • Here’s to another year where you can grace everyone with my sister’s presence.
  • If I appear to be in a great mood today, don’t be alarmed. It’s my sister’s birthday!
  • Surround my self with people who are more excited for my sister’s birthday than you are.
  • Why so many candles for such a small cake? I guess you’re getting old.
  • Feeling connected to my sister. Happy Birthday!
  • Today is the most important day of my sister’s life. And you’re going to celebrate it accordingly. Happy birthday to you.
  • Happy birthday to the funniest person I know — you.
Party iwth best friend birthday captions
  • Laughter brings a sister closer. Happy Birthday!
  • It’s my sister’s and you’ve never looked better. Here’s to you!
  • Today, you’re going to party like it’s my sister’s birthday. Oh wait, it is!
  • Crazy sisters!
  • Eating cake like it’s my sister’s job today.
  • Work hard. Play hard. Eat cake. That’s now my sister’s life and birthday motto.
  • Partners from beginning to end.
  • Calories don’t count today because it’s my sister’s birthday!
  • Born to shine, especially today.
Grils with sister Instagram captions
  • Telling everyone in sight that it’s my sister’s birthday!
  • Announcement: Today is my sister’s birthday!
  • Life would be a bore without you as my sister.
  • Cheers to you! Happy Birthday to my sister!
  • My sister’s birthday should be a holiday.
  • My sister’s birthday is tomorrow…just in case anyone was wondering.

Funny Sister Birthday Captions

We think that when it comes to birthday captions for sisters, funny ones are usually the best. If you like these funny captions about a sister birthday, continue on to our lists of Funniest Captions, Funny Family Captions, Funny Food Captions, Funny Selfie CaptionsFunny Couple Captions, Funny Travel Captions, Funny Graduation Captions, and Funny Birthday Captions.

  • Taking the day off. It’s my sister’s birthday.
  • It’s my sister’s birthday and I’ll eat cake if I want to.
  • Good Times + Crazy Sister = Great Birthday Memories!
  • Not wasting a single second of my sister’s birthday today.
  • Making my sister’s years count instead of counting the years.
  • Sister are awesome friends we didn’t have to find.
  • Is that a gray hair? Happy birthday to you.
  • Who knew another could look this good? Aging looks good on you.
  • Gonna party like it’s my sister’s birthday…’cause it is.
Sisters with funny sister birthday captions
  • Nice growing up with you!
  • Life’s too short to not eat cake.
  • It’s my sister’s birthday; you can wine if you want to.
  • If you’re reading this, it’s my sister’s birthday.
  • You can’t help being cute, You’re the birthday girl.
  • Ready to celebrate my sister’s birthday milestone.
  • Good sister vibes only.
  • My sister is just the right mix of chaos and love.
  • My sister’s birthday week starts…now!
Cake with short captions about birthday cakes
  • Every sister has a story. Welcome to ours!
  • Warning: It’s my sister’s birthday today!
  • Would it really be my sister’s birthday if she didn’t take a selfie?
  • Life would be a bore without me, right sis?
  • Zooming into my sister’s birthday week!
  • It’s proven by science that the more birthdays you celebrate, the longer you live.
  • It’s my sister’s favorite holiday…my sister’s birthday!
  • I have no shopping budget today, it’s my sister’s birthday!

Sister Birthday Instagram Captions

Your followers will love these sister captions for birthdays for Instagram. Find your favorite sister birthday Instagram captions here!

  • Getting my sister’s birthday glam on!
  • Sisters are therapists you can drink with.
  • Today is a whole new chapter! Happy birthday to you.
  • Sunshine and birthday wishes on my mind.
  • Life’s too short to not celebrate every chance you get. Happy birthday to you!
  • Because I have my sister, I will always have a friend
  • Birthdays are never overrated.
Sisters with sister birthday Instagram captions
  • Today is my sister’s birthday, and she’s riding high.
  • Today was amazing. I think the fact that it was my sister’s birthday made it 99% better.
  • Starting my sister’s birthday celebrations early this year!
  • Sister love is unique from other forms of love.
  • Blow up the balloons and bring out the cake. Today is my sister’s big day!
  • Some things really do get better with age… Happy birthday!
  • Small moments with my sister = big memories.
Girls with short captions about sisters
  • Today’s the best day of the year: my sister’s birthday!
  • You’re kind of a big deal today. Happy birthday to you.
  • Life’s too short to not celebrate every chance you get! Happy Birthday to you!
  • Can’t believe it’s my sister’s birthday. Here’s to another year of amazing memories.
  • Where’s my sister’s obligatory birthday selfie!
  • Love my sister to the moon and back.
  • Birthday candles aren’t the only things getting lit this weekend.
  • Feeling cute, might celebrate my sister’s birthday later.
Party with funny friend birthday captions
  • My sister is the squad I want
  • Everyday is worth celebrating, but especially today because it’s my sister’s birthday.
  • It’s midnight, which means it’s my sister’s birthday!
  • I have a craving for cake…It must be my sister’s birthday week.
  • Today is all about you! Happy Birthday to my sister!
  • Time spent with sisters is worth every second.
  • Cheers to another lap around the sun!
  • Today’s the day you can wear this birthday crown!
  • If you see this, you should know it’s my sister’s birthday.

Short Happy Birthday Captions for Sisters

If you like these short happy birthday captions for sisters, you will probably also like our longer list of Short Captions. You might also like our lists of Two Word Captions and One Word Captions  for when you really like them short and sweet!

  • Good news: Today is my sister’s birthday!
  • Getting my sister’s birthday glow on.
  • Epic sister moment
  • It’s my sister’s birthday and that’s the tea.
  • Pop the bubbly, it’s my sister’s birthday!
  • Peace, love and birthday fun!
Person iwith short happy birthday captions for sisters
  • I think this will be my sister’s favorite age yet!
  • The uglier the selfie, the closer the sister
  • I can’t stop smiling. It’s my sister’s birthday.
  • Sisters stick together.
  • A little sister time is good for the soul.
  • Today you’re just a whole year more incredibler.
  • Let my sister’s birthday shenanigans begin!
  • Thanks for letting me bother you all these years.
Two sisters with funny short sister captions
  • Squad up with my sis
  • There’s a sort of birthday magic in the air.
  • Thankful that I can call you my sister.
  • Sisters are forever!
  • Birthday vibes all around.
  • Best. Age. Ever. Happy Birthday to my sister!
  • Keep calm…it’s my sister’s birthday!
  • A little birthday party for you!
Chocolake cake with funny birthday cake captions
  • Birthday wishes and butterfly kisses.
  • Found my sister’s birthday crown.
  • My sister’s birthday, my sister’s rules.
  • Lovin’ my sister’s birthday glow.
  • Hugs, kisses and birthday wishes.
  • Nothing can stop you this year.
  • Did someone say it’s my sister’s birthday?!

Birthday Wishes for Sisters

Check out these great birthday wishes for sisters!

  • I hope you know how much joy my sister’s presence brings. Happy birthday my dear sister.
  • Thank you for always being a sister I can count on. Happy birthday!
  • Cheers to another trip around the sun! Keep on shining and have an amazing birthday.
  • Wishing my bestie – my sister the absolute best on their b-day!
  • I hear today is my sister’s birthday. Another year older is another year wiser my dear sister.
  • You’re the brightest star in the galaxy! Happy birthday to my sister!
  • Happy birthday to my best sister in the whole wide world.
Cake iwth birthday wishes for sisters
  • Wishing my favorite partner in crime a very scandalous birthday!
  • My sister’s birthday is fresh remembrance of the strength of our sistership. Happy Birthday.
  • Happy Birthday to my gorgeous sister. You’re the best! Cheers to a brilliant day.
  • Cheers to my sister’s own personal new year — let’s make it one for the books!
  • Happy Birthday to such a fabulous sister! Wishing you many blessings for the year ahead.
  • Cheers to more fun, more memories, and more cake! Happy birthday!
Beach with funny happy 19th birthday wishes
  • Congrats on getting another candle on the cake, sis!
  • Don’t worry, I already know my present is my sister’s favorite. Have a fabulous birthday!
  • No ifs, ands or buts about it: You really are the best sister anyone could have. Happy birthday!
  • You make our world a better and brighter place — happy birthday sis!
  • A great day to celebrate a great sister! Happy birthday, and cheers to many more.

Short Sister Birthday Quotes for Instagram

Here are our favorite short sister birthday quotes for Instagram. After, you can check out our list of Short Quotes, too.

“A sister will always notice her sister’s first gray hairs with glee.” – Allison M Lee

“The older you get the better you get, unless you are a banana.” — Betty White

“More than Santa Claus, your sister knows when you’ve been bad and good.” – Linda Sunshine

“For all the advances in medicine, there is still no cure for the common birthday.” — John Glenn

Balloons with happy 11th birthday quotes by Rapunzel

“All the world is a birthday cake, so take a piece, but not too much.” — George Harrison

“The best birthdays of all are those that haven’t arrived yet.” — Robert Orben

“You can kid the world, but not your sister.” – Charlotte Gray

“Youth is a gift of nature but age is a work of art.” — Stanislaw Lec

“Age is something that doesn’t matter, unless you are a cheese.” — Billie Burke

“Aging seems to be the only available way to live a long life.” — Kitty Collins

Sisters jumping with short funny sister quotes for Instagram by Gray

“My first job is big sister and I take that very seriously.” – Venus Williams

“Growing old is mandatory; growing up is optional.” — Chili Davis

“You know you are getting old when the candles cost more than the cake.” — Bob Hope

“Sisters make the best friends in the world.” — Marilyn Monroe

“I intend to live forever. So far, so good.” — Steven Wright

“Always remember that you are absolutely unique. Just like everyone else.” — Margaret Mead

“A Sister is a cure for swollen heads and ego trips.” – Pam Brown

People on dock with happy 33rd birthday quotes

“You are only young once, but you can stay immature indefinitely.” — Ogden Nash

“Age is an issue of mind over matter. If you don’t mind, it doesn’t matter.” — Mark Twain

“From our birthday, until we die, is but the winking of an eye.” — William Butler Yeats

Funny Sister Birthday Instagram Quotes

These funny sister birthday quotes will put a smile on your sister’s face. If you like funny quotes and sayings, you should also check out our lists of Short Funny Quotes, Funny Good Morning QuotesFunny Love QuotesFunny Work QuotesFunny Quotes of the DayFunny Quotes About Life and Funny Inspirational Quotes.

“Inside every older person is a younger person – wondering what the hell happened.” — Cora Harvey Armstrong

“Birthdays are a great time to stop and appreciate gravity. Sure, it makes things sag as you get older, but it also keeps my cake from flying all over the room so you don’t have to chase it.” — Greg Tamblyn

“A sister is a little bit of childhood that can never be lost.” – Marion Garretty

“You’re getting old when the only thing you want for my sister’s birthday is not to be reminded of it.” — Felix Severn

“Sisters will always love you tomorrow no matter what you do today.” — Marinela Reka

Birthday cake with quotes for 40th birthday cake by Morykwas

“Why is a birthday cake the only food you can blow on and spit on and everybody rushes to get a piece?” — Bobby Kelton

“When sisters stand shoulder to shoulder, who stands a chance against us?” – Pam Brown

“The old believe everything, the middle—aged suspect everything, the young know everything.” — Oscar Wilde

“A sister is a dearest friend, a closest enemy, and an angel at the time of need.” – Debasish Mridha

Hands making heart with funny sister quotes for photos

“Today is the oldest you have been, and the youngest you will ever be. Make the most of it!” — Nicky Gumbel

“Birthdays are good for you. Statistics show that the people who have the most live the longest.” — Larry Lorenzoni

So there you have it! Our lists of Instagram Quotes for Sisters’ Birthday and Happy Birthday Captions for Sisters. We hope you found the perfect one for you.

If you like birthday captions, you might also want to see our lists of the best captions for 16th, 17th, 18th, 19th, 20th, 21st, 22nd, 23rd, 24th, 25th, 26th, 27th, 28th, 29th, 30th, 31st, 32nd, 33rd, 34th, 35th, 36th, 37th, 38th, 39th, 40th and 50th birthdays.

Now go share your sister birthday photo!

Let us know if there is a caption that we missed and we will add it.

About the Author

Laynni Locke

Laynni Locke

Laynni has been sharing her travel adventures and day-to-day life on Routinely Nomadic social media for over 15 years and appreciates the importance of finding the perfect quote or caption to showcase those experiences. Putting her extensive writing and education background to good use, Laynni has become passionate about researching and curating comprehensive lists of all the best quotes and captions for every occasion.

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