50+ Happy Birthday Wishes for Sister from Another Mother

If you’re lucky enough to share a special bond with your BFF that makes her more like a sister from another mother, you’ll want to celebrate her birthday with the very best wishes!

We’ve handpicked the sweetest birthday quotes and messages for your number 1 bestie! From short captions to heart touching wishes, each one has been lovingly crafted to put a smile on her face and brighten the birthday of your sis from another miss!

33 Short & Sweet Sister from Another Mother Quotes

• Happy birthday, girl. On your special day, I hope you know that you mean the world to me. 
• In you, I have a best friend and sister for life. I’m truly grateful for you.
• Happy birthday to my number one girl! To me, you’ll always be more like a sister!
• Few friends are like sisters, but then again few friends are like you ❤️
• I’m so blessed to have a friend like you in my life who I can proudly call a sister.
• You’re my sister not by blood, but by heart. Happy birthday, girl.
• Sending the best birthday wishes to my sister from another mother! ✨
• Happy birthday to my sister from another mother, who quite simply is like no other!
• Sisterhood is a relationship between sisters, a bond I’m blessed to share with you.
• A chosen sister is the most precious kind of sister. Happy heartfelt birthday, sis.
• Happy birthday to the biggest blessing in my life: my dear sis from another miss!
• HBD to my sister from another mother; my partner in crime and best friend in the world!
• Sending you big hugs and kisses on your special day today, bestie! 🎂
• Happy birthday to a friend and sister rolled into one! We’re practically twins!
• “Sisters are different flowers from the same garden.”
• No matter how old we get, we’ll always be there for each other. You’ll forever be my favorite gal pal.
• Happy birthday to a one-of-a-kind friend, one I am so lucky to have in my life.

 

Happy birthday to my sis from another miss! I hope your birthday today is just as fabulous as you are!

• “There’s no better friend than a sister.” — Mary Engelbreit
• Sending heartfelt birthday wishes to my number 1 girlie!
• You will always be my inspiration, bestie. Wishing the happiest of birthdays to you.
• Today, I have only the sweetest birthday wishes for my big sister from another mother!
• We’ll be there for each other through thick and thin. I’ll always have your back, girl.
• Thank you for keeping me sane in this crazy world, my fabulously funny friend! 😜
• Another birthday already, girl! What happened to us, when did we get so old!
• On this special day, I’m thankful to your mom for bringing my BFF into the world!
• I’m wishing you the warmest and happiest birthday yet, my dear sister!
• We may not be siblings from birth, but you’re for sure my soul sister. 
• HBD to you, my dear sister! May your day be as fabulous as you are!
• Wishing you the sweet, heart touching birthday you deserve today, sis.
• I wouldn’t trade the bond we share for anything in the world, sis. Love you!
• Today and always, you’re in my thoughts and prayers. Sending you sweet birthday blessings, sis.
• Happy birthday to my second sister! You’ll always have a special place in my heart!

Longer, Heart Touching Birthday Wishes for Sister from Another Mother

Happy birthday to you today, sis!

We may not share the same mother but that makes no difference to me. You are more caring, supportive, and loyal than many full sisters out there!

To my very best friend in the whole 
world, my confidante and dear sister 
at heart, I am wishing you the most 
wonderful birthday ever today!

Always know that you are my family, 
and the small fact that you come from 
a different mother doesn’t make you 
any less of a sister to me!

Big hugs to you on your special day!

You may not be my sister by blood but
you will always be my sister at heart.

Nothing can take that away from us!

Happy birthday, my dear!

A dear gal pal like you
Who’s so funny and sweet
Is much more like a sister
Than anyone I’ll meet!

Happy birthday, bestie!