Birthday wishes for sisters, sister-in-law, or someone like a sister to you should make them feel loved and celebrated. Find funny, heartwarming messages here.© prpicturesproduction - Getty Images ...

Wish your sister or sister-in-law a happy birthday with our list of 100 birthday messages for sisters. From sentimental to funny, choose one to write in a card.

Today, it’s all about celebrating your sister. Below, find funny and thoughtful birthday wishes for your sister — or any sister figure — in your life.

Short, funny and thoughtful messages that would make the perfect birthday wish for your sister or sister-in-law this year.

Birthdays aren't meant to be serious, and neither are birthday cake messages. Stand out from the "Happy Birthdays" of the world with one of these funny birthday cake messages.

Read latest information about 101 Best Birthday Wishes for Sister, 101 Best Birthday Wishes for Sister latest updates, about ...

Whether she’s your older sister, a sister-in-law, or your bestie who’s like a sister, there’s a birthday wish here that’s sure to give her a mental hug. By Emily Goldman Published: Mar 13 ...

So, with those stakes in mind, feel free to steal any of the lovely little messages we’ve got down below. (And tell your girl we said happy birthday!) Funny birthday messages for your sister-in-law ...