Brother-in-laws are a mixed bag. You never know what you are going to get. That’s why I’m so happy we ended up with you! Happy birthday!

Happy birthday to my brother from another mother. Hope it’s a great one!

I hope your birthday is filled with all the things you enjoy and the year following is filled with all the luck you can handle!

I just want to say thank you for being a great brother to my wife all those years when you were growing up together. She wouldn’t be the amazing woman she is today if it wasn’t for you.

Thanks for always being there for both of us. You are the best brother-in-law a couple could ask for! We hope you have a ridiculously awesome birthday!

Happy birthday dear brother-in-law. My husband wouldn’t be the same man he is without all those childhood adventures you both went on. Thank you for helping make my husband the great guy he is.

To the best brother-in-law, I wish the best of life. Happy birthday, man! May this day be filled with joy and love.

I wish you a happy birthday and I hope you can achieve all of your goals in life! May joy and love fill each and every day of your life.

I’m not great at birthday wishes, but I just want to say you are a pretty amazing brother-in-law. I hope you have a great birthday.

You were always super welcoming to me even before I became your brother-in-law. I really appreciate that. Happy birthday and thanks for making me feel like part of the family.

It’s great to have such an amazing guy as family. I’m so glad you are my brother-in-law. Happy birthday!

Who has two thumbs and a birthday today? Probably a lot of people. But the best of them is my brother-in-law! Happy birthday!

It’s your birthday, so feel free to party it up! And if my sister gives you flack for having fun on your birthday, just let me know.

I never had a brother, but with such a great brother-in-law, who needs a biological brother! Hope your birthday is as awesome as you are.

Here’s hoping your birthday is filled with a bunch of good presents, a load of good food, and lots of good company!

Watching you and my sister interact always makes me so happy. I love the way you both care about each other so much. I couldn’t be happier to have you as a brother-in-law. Happy birthday brother!

I figure your birthday is a good time to remind you that even though you are my brother-in-law, I consider you a blood brother. I’ve always got your back if you need anything, just say the word. Oh, and happy birthday, I hope it’s a great one!

Just because we are getting older doesn’t mean we can’t have fun. Let’s party it up and have some fun on your birthday!

Happy birthday, dear brother-in-law! I really appreciate how you have always taken care of my sister and how you always have her best interests at heart. It makes me happy to see how much you care about each other.

Your birthday is the perfect time to celebrate all you’ve accomplished this year! Happy birthday brother-in-law, I hope this next year is filled with even more accomplishments!

I never know what to write in cards, I guess I’ll just wish you happy birthday and let you know that you are a wonderful brother-in-law.

Happy birthday to a great friend and an even better brother-in-law!

It’s been a long time since we could hang out, but I just wanted to reach out on your birthday and let you know, you rock. Happy birthday!

Happy birthday! I hope you have an amazing day and I just wanted to take this opportunity to say that I feel honored that I get to be a part of your family.

When you and my sister were dating I always hoped you would become my brother-in-law. And now you are! Welcome to the family brother, I hope you have a really good birthday.

Sometimes everyone needs to be reminded how great they are and a birthday is the perfect time to do it. So, happy birthday brother-in-law, keep being awesome!

Happy birthday, my dude! What a great man you are, and undoubtedly the best brother-in-law there is.

We’re definitely different but I’m glad we could become good friends. I’m happy to have such a great brother-in-law. I hope your birthday is as fantastic as you!

Happy birthday to my favorite brother-in-law! Yeah, I know you are my only brother-in-law, but that doesn’t mean you aren’t an amazing one!

I really appreciate how you have always taken care of my wife and always had her best interests at heart. I respect that. Happy birthday to a great brother and brother-in-law.