Happy Birthday, Brother-in-Law: 50 Thoughtful Wishes

Good friends taking a selfie at a party

Whether you are close with your brother-in-law, or just getting to know him better, sending him birthday wishes is a thoughtful way to show him you care about him. If you aren't sure how to say happy birthday to your brother-in-law, reading some birthday message examples can help you find the perfect note to write to him.

Happy Birthday Brother-in-Law

Sending your brother-in-law birthday wishes is a great way to connect with him and let him know you are thinking of him.

How Do You Wish Your Brother-in-Law Happy Birthday?

Some birthday messages include:

  • Wishing you the happiest of birthdays today! We are so happy to have you as part of our family and couldn't imagine it without you!
  • Have the best b-day today! You are an incredible person and deserve to have an extra perfect day!
  • Happy, happy birthday!! I could not ask for a better brother-in-law and feel so grateful to be a part of your life!
  • Happy Birthday to the best brother-in-law in the entire world! We love you so much!
  • Happy trip around the sun! So happy to be celebrating with you!
  • Wait, what day is it today? It's only my favorite brother-in-law's b-day! Hoping you have a day filled with lots of fun!
  • Happy b-day to an incredible brother-in-law and solid friend. Hoping you have a special day!
  • It's someone's b-day today!!! We hope you have an incredible day! We feel so honored to have you as part of our family!
  • We have loved getting to know you and hope you have a beautiful birthday filled with lots of yummy treats!
  • We can't wait to celebrate your birthday with you tonight! Wishing you a year of good health and happiness!
Young man blowing out the candles on his birthday cake

What Do I Say to My Brother-in-Law?

Birthday message options include:

  • This year, you take the cake! We're so happy that you've joined our family and hope you have a fantastic b-day!
  • You better believe we're going to party hard tonight! We can't wait to celebrate the best brother-in-law's b-day later!
  • Make a wish- it's your birthday! I feel so lucky to have such an amazing brother-in-law!
  • We are so happy you have joined our family and can't wait to celebrate your birthday with you!
  • You've not only made my sister beyond happy, but I also feel incredibly grateful to have a bonus brother who I know I can count on. You've been there for me when I needed advice or just a good laugh, and I wanted to thank you for that. I hope you have a wonderful birthday- you deserve it big time!
  • It's hard to express just how happy I am to have you in our family. I've truly loved getting to know you, and I can see why my brother has raved about you from the get go. I hope you have an amazing birthday filled with lots of love!
  • You're the best and deserve to have the most amazing birthday! I can't wait to celebrate with you later!
  • All of our lives changed when you joined our family three years ago, and we couldn't be happier. You are such a kind, loving, and thoughtful person and I hope you have a fantastic birthday- you deserve it!
  • Bust out the cake- it's party time! Tonight we celebrate you and all of your awesomeness! Happy b-day!!!
  • Happy b-day to our fave brother-in-law! You truly are the best!

Happy Birthday Brother-in-Law Images

Adding birthday wishes to a card or image can really make your message extra special.

  • Happy Birthday to the best brother-in-law around! We hope you have an amazing day filled with lots of cake, presents, and love!
  • Whale, whale, whale, it's dolphinately your b-day today and we hope it's a splash!
Dolphin leaping in open ocean.
  • I feel so lucky my sister married such an incredible partner! Have the best birthday today! I love you!
  • We're so happy our brother married such an amazing partner! You truly are the best and we hope you have an awesome birthday!
  • Happy Birthday to the brother-in-law who is truly one of the funniest people I've ever met. I'm so happy to be part of your family!
  • Happy Annibirthsary bro!! Have the best day!
  • I know I don't say it often, but I wanted to tell you how happy I am that you are a part of our family. Happy b-day buddy!
  • Let's get frosted- it's cake time! Happy b-day!!!
Whisk in Frosting
  • Tick tock- it's b-day o'clock!!! Happy birthday to our favorite brother-in-law!
  • On your birthday, I just wanted to tell you how overjoyed I am to have you in our family!

Happy Birthday Brother in Law Quotes

Birthday messages for your brother-in-law:

  • No one holds a candle to how great you are! Happy b-day to the best brother-in-law I could have asked for!
  • I love having a brother-in-law who I share a birthday with! Happy b-day to us!!!
  • It's rare to get along so well with your brother-in-law and I wanted to tell you it's okay we don't click. Just kidding!! You are one of my favorite people and I hope you have an amazing birthday!
  • Happy birthday to a truly wonderful person! I never thought having a brother-in-law would be like having another sibling and for that, I am truly grateful.
  • What do you give to the guy who has it all on his birthday? A gift card! I know, I know, pretty exciting for a b-day present!
  • Your birthday is a day to celebrate you putting up with our family for so long! We adore you and hope you have a magical day!
  • It's that time of year again- to celebrate you! Happy birthday to the funniest and kindest brother-in-law in the world!
  • You made it another year in our family- Congrats!! Happy birthday to the brother-in-law who is beyond kind to all of us and always puts a smile on our faces!
  • You scream, I scream, we all scream for ice cream cake!! Just kidding--we know you're lactose intolerant and your cake is dairy free. We love you to pieces and hope you have the best birthday!
    Birthday cake with candles and drip icing
  • Cookies, cake, and ice cream oh my! Ya we went a little overboard, but that's just because we love you! Happy b-day to the most amazing brother-in-law!

Birthday Wishes to Dear Brother-in-Law

Birthday wishes for your brother-in-law:

  • I wanted to let you know I've really enjoyed getting to know you and am so happy that we have a new member in our family. Wishing you a very happy birthday today!
  • Happy b-day dear brother-in-law! You are without a doubt the funniest member of our family (don't tell anyone) and I hope you have the most incredible day today!
  • Happy birthday buddy! I feel so lucky to call you my brother-in-law and look forward to celebrating you later today!
  • Happy birthday to my fave bro in law! You truly are one of a kind!
  • We're bouncing off the walls excited to celebrate you today!! Hoping you have a birthday as awesome as you!
  • Happy birthday to the sweetest guy around! We love you so much and couldn't ask for a better brother-in-law!
  • To our favorite brother-in-law- we hope you have a funfetti birthday!!!
  • Happy happy b-day to the coolest brother-in-law around!!! You deserve the most amazing b-day today!
  • Tonight we celebrate you and all of your amazing-ness! Happy b-day to our favorite brother-in-law!
  • I don't say it often enough, but I love you so much and feel so lucky to have you as a brother-in-law. I hope you have a wonderful birthday and another great year!

How Do You Write a Thoughtful Birthday Message?

If you want to write a thoughtful birthday message:

  • Speak honestly about your feelings.
  • Express how much he means to you.
  • Tailor your message to his personality (for example, if he likes to joke around, you can keep your note lighthearted and funny).

Birthday Wishes for Brother-in-Law

Writing a birthday message for your brother-in-law can mean a lot to him and is a thoughtful way to show him that you are thinking of him.

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Happy Birthday, Brother-in-Law: 50 Thoughtful Wishes