If you have a sister-in-law and are looking for cool and interesting birthday wishes to send to her on her Big Day, then this page is definitely worth spending time on.
Here, we have a bunch of birthday wishes for sisters-in-law that cut across various categories such as funny, sweet, and formal. These wishes are so well written that they will not only play a very big role in making your in-law’s birthday celebration a memorable one but also make her know that she means something special to you.
Funny Birthday Wishes for Sister-in-law
- My dear, I guess you know that it is all downhill from here onwards?! But happy birthday all the same!
- My brother has done a lot of crazy things in his life, but the moment he brought an amazing person like you into this family, all his ‘sins’ were forgiven. Happy birthday, my sister-in-law.
- I was thinking deeply of what present to offer you on your birthday until I remembered that you already have the best present in the world in me, the world’s most awesome sister-in-law/brother-in-law. Hmm…what a lucky woman you are! Happy birthday, you lucky one!
- Dear sister-in-law, on this day, I ask that God bless you with a slim body and one heck of a fat bank account! And please don’t forget me when the money starts rolling in! Have a fabulous birthday party!
- My brother is famed all over the community for his bad choices, which is why it comes to all of us as a big surprise that this time around he was able to pick someone as wonderful as you. Happy birthday, dear.
- Wishing my amazing sister-in-law an amazing birthday celebration. I swear I didn’t need Facebook to remind me of your birthday!
- Yay! It is your birthday today! Where’s the birthday bash taking place? Today, we are surely going to support wildlife by partying wildly on your birthday bash, so don’t forget your dancing shoes!
- On your Big Day, dear sister-in-law, may God give you the body of Angelina Jolie, the wealth of Bill Gates, the compassion of Mother Teresa, the self-confidence of President Donald Trump, and the smile of President Obama. Happy birthday.
- Dear sister-in-law, as you blow the candles on your birthday cake, take note of the fact that I love you more than Queen Elizabeth II loves to wear gloves. Happy birthday, sis.
- In the world of sisters-in-law, you would certainly win a Nobel Prize because you are such an awesome individual! Have a wonderful birthday celebration.
- On this day, I want to congratulate you on turning a new age and surviving another year of my brother. Keep it up! Happy birthday, sister-in-law!
- May God make any extra fat on your body to either get the f*** out of your body or make its way to your bottom to make you more bootylicious than our dear Beyoncé and Kim Kardashian combined. Happy bday.
- I know I’ve been a wonderful and sweet sister-in-law/brother-in-law to you ever since you joined this family, so on your Big Day, I am saying “You’re Welcome”. Enjoy your day to the max!
Cute and Sweet Birthday Wishes for Sister-in-law
- I am so lucky to have my best friend in my sister-in-law. I couldn’t have asked for a better sister-in-law. Happy birthday, dear.
- On your special day, dear sister-in-law, I just want to let you know that I will always be there for you. I will never let you wander in the dark all by yourself. Happy birthday, dearest sister-in-law. You are such a big gift from God to my brother, me and the entire family.
- A wonderful sister-in-law like you is more valuable to me than a thousand friends. I am so thankful you found your way into our family. Happy birthday, my sweet sister-in-law.
- Ain’t no sister-in-law like the one God has blessed me with. May the Heavens bless and protect you wherever you go. Happy birthday.
- You are not only my sister-in-law but also my best friend given to me by nature. Happy birthday.
- Thank you for being a blessing to my brother and the entire family. May you keep on putting smiles on the faces of the people around you. Happy birthday, my dear, and forever stay blessed.
- We may argue and fight sometimes, but that doesn’t stop you from being an incredible friend and a wonderful wife to my brother. Happy birthday to you, my dearest sister-in-law.
- I thank God every day I wake up from sleep simply because He has blessed me with a sister-in-law like you. May your heart always be home to happiness and joy. Happy birthday.
- No treasure on earth can compare to the fact that I have a wonderful sister-in-law like you in my life. Thank you for always being there for me. Happy birthday.
- There’s nothing on earth that can stop me from loving and caring for you, my dear sister-in-law simply because you are such a special woman. May God keep heaping the choicest of His blessings upon your inspirational life. Happy birthday.
- Congratulations on your birthday, dear sister-in-law. I am glad you are no longer just an ordinary person in my life but a member of my family. May your birthday bring to you all the wonderful things you have ever wished for in life. Happy birthday.
Somehow Formal Birthday Wishes for Sister-in-law
- On your special day, sister-in-law, I wish you good fortune and all the beautiful treasures in the world because you are not only an amazing in-law but also a very good friend. Happy birthday.
- I hope that the Heavens look down upon you today and bless you abundantly. Have a fabulous life filled with happiness and tranquility, my dear. Happy birthday.
- Wishing the world’s most amazing sister-in-law an astonishingly merry birthday. I pray that you keep on making phenomenal strides in life.
- Heaven must have selected you to bring happiness, peace and harmony into our family. Thank you for being such a kind, caring and loving sister-in-law. Happy birthday.
- Dear sister-in-law, your birthday will always be a special day to me since it is the day you came into this world to bring happiness to our family. Happy birthday, dear.
- On your special day, I wish you a life full of joy, tranquility and prosperity. Happy birthday, dear sister-in-law.
- I wish you a happy, successful and prosperous year ahead because you are such a special sister-in-law. I hope your birthday turns out to be a very memorable event.
- Happy birthday, my dearest sister-in-law. There’s no day that goes by that I don’t think of how empty my brother’s life would have been had you not been in it. Thank you for decorating his world and bringing happiness to our hearts.
- Happy birthday to my phenomenal sister-in-law. May your birthday bring you as much happiness and joy as you bring into the lives of others. God bless you.
- Today is your special day, my dear! May your dreams that are yet to materialize start materializing from this remarkable day. Happy birthday.