100+ Happy Birthday Sister In Law Wishes, Messages And Quotes

Are you struggling with how to say Happy Birthday Sister in Law? If YES, then you are not alone. The words come easily with your direct family due to a deep connection and bond within family members. But birthday wishes for a sister in law are trickier to say and write. Because you may be unaware of what they like and what they don’t like. But now there is no need to fear for you because we have compiled the right words to say Happy birthday to your sister in law.

We have a huge list of the best birthday wishes for a sister in law. So read on the messages and wished to find the perfect birthday messages to show your sister in law just how much you care.

Happy Birthday Sister In Law Wishes

Send these Happy Birthday Sister In Law Wishes to your sister in law and show her how much you care for her and how much she is special for you.

Happy Birthday Sister In Law

Happy Birthday, sis! I’m so glad you’ve become part of the family and hope you have an awesome birthday.

You’re not just my sister in law – you’re my sister, full stop. And a sister as amazing as you deserves a special birthday! Here’s to it being a great one.

I’m so grateful you came into my life and became more than a friend, but a sister and member of the family. Happy Birthday!

The person I always feel I can talk to and share with is you – my wonderful sister in law. I hope you have a brilliant birthday.

We may have had a difficult start to our relationship but now I couldn’t imagine our family without you. Have an amazing birthday sis in law!

The smartest decision my brother ever made was marrying you. Just like him, we’re lucky to have you in our lives. Enjoy your birthday.

You’re an incredible person and one I’m proud to call my sister. Let’s celebrate your birthday the way we should – with drinks, cake, and a big party!

When I was younger I always dreamed of having a sister, and then all these years later you came into my life. I feel so blessed and lucky to be able to call you sister. Happy Birthday!

My dreams came true when I wished for a sister like you. So when you blow those candles out don’t forget to make a wish – you never know what might happen. Happy Birthday to a wonderful sister in law.

Happy birthday to you, my gorgeous sister in law! I’m truly ecstatic that you’ve become a member of our family. I hope your birthday will bring you lots of cheers and wonderful things!

My dear sister in law, are you even aware of how generous, awesome, and cool you are? In fact, I am truly overjoyed by the fact that an amazing person like you was married into the family! Happy birthday!

I’m just going to say it because we’ve all been thinking it for ages now – what did you see in my brother!? Whatever it was I’m so pleased you did though, as I’ve now got the best sister in law in the world. Happy Birthday, girl!

To my very special sister in law: have a special birthday surrounded by friends and family.

I learn and grow by having you as a sister in law. You’re amazing. Happy Birthday.

Being related by blood is important, but it’s not everything. Sometimes you just know by the relationship you have that someone was meant to be your sister. And we’re sisters through and through. Happy Birthday, sis.

We may not have been related from birth but the connection we have means we knew we were meant to be sisters from the start. Happy Birthday to an incredible sister in law.

As today is your birthday it’s the perfect time to tell you how special you are to me. Having you as a sister in law means the world to me and I look forward to many more years of having you as part of the family. Happy Birthday.

My brother may be my most annoying sibling and we may not always get along, but I do love him. Now I love him so much more for bringing a person like you into our lives! Happy Birthday.

Happy Birthday Sister in Law Messages

These Happy Birthday Sister in Law Messages are specially created so you can make the birthday of your sis in law special by sending her these messages. We hope she will love them.

Happy Birthday Sister In Law

I know how difficult it must have been joining a new family but you opened your arms and treated us like we’d known each other all our lives. I’m so pleased and appreciate how warm, generous and loving you’ve been. Here’s to an amazing birthday and many more.

I could never have imagined how close we’d become but I now can’t begin to think about you not being in my life. We’re family through and through. Happy Birthday, sister!


I’ve got you a lovely birthday gift but I must remember to give my bro one as well – he deserves it for finding and managing to convince you to marry him! I’ll never work out how he managed it but am so glad you came into my life. Have a truly special birthday.


You’ve added strength, love, and generosity to our family. And maybe most importantly I’ve made a friend for life. Happy Birthday to an amazing sister in law.

Sister in law, may your special day be surrounded with lots of love and an abundance of happiness! I really love you and I just wanted to see you happy because that is what you truly deserve. Happy birthday!

Honestly, I was worried when I found out that my brother is marrying you because I really thought that you’d replace my place in his heart. Yet I realized how foolish I was. You just made his heart even bigger with your unconditional love! Happy birthday!

I was looking for that perfect gift to give you on your special day, however, I realized that you already got one of the best gifts of life – me as your sister in law! I could not possibly top that kind of gift so I opted to give you a cake instead! Enjoy your day!

Happy birthday my dear sister in law! May each and each wish you have come true. It may not be possible, but you know what, when I was a kid I wished that I would be given an awesome sister in law, and wow, it did happen!

I know of some people who are just not fond of their sisters-in-law. I cannot help but feel sorry for them for they were not lucky enough to experience how amazing it is to have a great sister in law like you! Thank you for coming into my life. Happy birthday!

Sister in law, I wanted to take this opportunity to thank you for enriching my life with your compassionate ways and kind heart. I’m truly grateful that you have chosen to marry my brother. Happy birthday, my dear!

If you’re going to drop the in-law from the word sister in law, you’ll end up with a sister. And that’s exactly what I feel about you – a sister who is a great friend as well! Happy birthday, sis! May your special day be filled with laughter, love, and luck!

I know I have several other in-laws, but of them all, you’re the only one who I can easily turn to for advice and support. So thank you so much for being an important part of my life. I hope your birthday will be filled with cool presents, cheerful people, and lots of birthday cakes!

My brother may have done a lot of stupid things in the past but I’m glad that marrying you was not a part of that. In fact, I feel very grateful that he chooses you to be his wife. You’re the best sister in law anyone can ever have! Happy birthday!

People might know you as the wife of my brother and a sister in law to me, but I would personally prefer to call you my sister and my best friend! May you enjoy your special day today and may it be filled with fun and fabulous memories! Happy birthday!

The day that my brother chose to marry you was one of the happiest days of my life. It’s because I realize that he finally did something right in his life! Well, just kidding. But I’m truly delighted that you’re a part of my family. Happy birthday!

As a sister in law, you’ve shown me warmth, compassion, kindness, and love. I’m truly amazed at your capacity to show love to everyone in the family in your own amazing ways. Happy birthday!

Happy birthday my dear sister in law! You’re such a lovely person and you deserve an even lovelier birthday celebration! So I hope you will enjoy the small party we have prepared for you.

Happy Birthday Sister in Law Quotes

Birthday is a special occasion and it comes only once in a year. So, make this special day of your sister in law more special by sending her these Happy Birthday Sister in Law Quotes.

Happy Birthday Sister In Law

If I didn’t have you as a sister in law, I’d choose you as a friend! – Unknown

Happiness is going shopping with my sister in law. She’s got the traits of my husband that I like, with the added bonus of her love of shopping!


Sisters are special, from young ones to old. God gave me a sister. More precious than gold.


There is no better friend than a sister, and there is no better sister than you!


Having a sister is like having a best friend you can’t get rid of. You know whatever you do they’ll still be there.


Side by side or miles apart, we are sisters connected by the heart.


If you’re not sending a card then wishing your sister in a law a happy birthday on Facebook is the next best thing. You can use the examples below as status updates or as a comment on posts and walls.


Sorry I couldn’t be there but happy birthday to my favorite sister in law.


Happy Birthday to the best sister in law in the world!


You’re an amazing sis in law and deserve a wicked birthday.


I know it won’t be the same without me there but try to have a good birthday sis!


Dance, eat cake and have an awesome birthday!


It’s my sister in laws Birthday! She’s amazing and won’t mind I haven’t got her a gift


Happy Birthday to you, my incredible sister in law. Love you!

Happy Birthday, sis! May you have many, many more good years, fun times and great memories to share!

Happy Birthday Sister in Law Funny

Make the birthday of your sister in law fun and more joy with these Happy Birthday Sister in Law Funny quotes, messages and wishes.

Happy Birthday Sister In Law

You may want to have a bit of a joke on your sister in laws birthday if she’s the right type. A good way to put a smile on her face is with a funny message. Try one of the witty and humorous wishes below for your card or to say in person and have a laugh on her big day.

I didn’t bother getting you a gift as you have me – the most amazing, beautiful and intelligent sister you could ever need! Happy Birthday!


Don’t forget to blow your candles and wish for whatever you want. Well, apart from being younger. That ship has sailed I’m afraid! Happy Birthday, sis!


Let’s celebrate your birthday by agreeing to spend the next year tormenting your husband/my brother! Let’s face it – he deserves it!


It may be your birthday but don’t forget you owe me! Remember, it’s me who tells you all my bro’s secrets and past mistakes you use against him!


Happy Birthday, sis! Who knew I’d find someone who loved wine, gossiping and trashy TV as much as me!


Don’t worry, seeing as we’re sisters now I promise I won’t tell anyone how old you REALLY are. So Happy ’28th’ Birthday!


Happy birthday to my sister-in-law. Here’s to another year of surviving my brother!


Happy Birthday! Always good to know there’s another kidney in the family if I need one!


I can’t believe my sister in law is 25 today. Mainly because I know your real age! Happy Birthday.


I smile because you’re my sister-in-law, and I laugh because there’s nothing I can do about it!


I’m so lucky to have a smart, beautiful, funny, and slightly older sister-in-law.

You seem to attract great things. Just think! You got my brother and our whole family!

Happy Birthday Sister in Law Status

Social media is all over now, and life is not complete without it. Share these Happy Birthday Sister in Law Status on social media to make your sis feel special and loved.

Happy Birthday Sister In Law

You might think that no one in the family loves you more than my brother does, but you’re actually wrong. I love you so much not only because you’re my sister in law but also because you have such a genuine heart. Happy birthday!

I am beyond blessed because I have a best friend and an amazing sister in law in one! Thank you so much for choosing to marry my brother. May your birthday be as bright and warm as you are!


Happy birthday my dear sister in law! Thank you for making our family even better just by being in it. You’ve proven that it’s actually possible to develop a great relationship with a sister in law who is not related to me by blood.


Happy birthday, sister in law! You’ve actually done a great job at helping my brother to become the best version of himself! In fact, I see it as a miracle! I don’t know how you’ve done it, but I just want to praise you for a job well done!


Happy birthday my dear sister in law! I’m really glad that I was married to someone who has a sister who has a gentle and kind heart. Thank you for treating me like your own sister. I hope you will enjoy your birthday today!


Happy birthday to my husband’s sister who is also a best friend to me! When I married your brother, I only look forward to having romantic dates with him. But now, I also look forward to having coffee dates and meaningful talks with you.


Thank God my brother chooses to marry you! I cannot even imagine what life is if I was given a different sister in law! Happy birthday to you, my dear, may your special day be everything you wanted it to be!


Happy birthday my sister in law! I just wanted to take this opportunity to thank you for fulfilling one of the things that I have been dreaming about since childhood – to have a sister in law who will also be my best friend! I hope we’ll forever stay this way!


My dear sister in law, you always go out of your way to treat me for a coffee in my favorite coffee shop. That might be a small thing for you but it’s something that I really appreciate so much. Happy birthday!


Happy birthday my dear sister in law! Your generous, warm, and caring nature has truly warmed my soul in ways that I never thought possible. May you have a prosperous, joyous, and momentous birthday celebration!


Happy birthday to you, my dear sister in law! The day that my baby brother married you was also the day that I have chosen to forgive him for being so annoying. Thank you for loving him as much as we do!


My dear sister in law, you may be a beloved daughter to your parents, but you’re also my brother’s precious wife. Above all, you are one of my best friends in life. Your life advice is some of the things that I treasure the most. Happy birthday!


For the past few years that you’re married to my brother, you’ve amazed me with your ability to make people love you instantly. Your addition to the family has truly enhanced our lives in so many beautiful ways. Happy birthday!


Happy birthday! When my brother decided to marry you, I was really worried that he may not have time for us anymore. But I was wrong. As a matter of fact, we just become closer and closer than ever. So thank you for coming into your life.


I’ve always condemned my brother’s bad choice in women. However, when he introduced you to us, I immediately realized that for the first time, he has made the right choice in life! So thank you for marrying my brother, you are amazing!


Happy birthday my dear sister in law! May your birthday be filled with outstanding memories, amazing discoveries, and abundance of happiness! You truly deserve all these amazing things and more!


I only wish you lots of great things for your special day, my dearest sister in law! May you have good health, lots of money, and astonishing blessings! Please know that whatever happens, I will always be here for you.


Sister in law, thank you for making my baby bro exceptionally happy. Above all, thank you for bringing so much love and kindness to the family! You’re an endearing, affectionate, and inspiring person and we’re truly lucky you came to our life. Happy birthday!


My dear sis in law, I look up to you in so many ways. I adore you as a person and love you like my own sister. You have made my life so much better because of your lovely presence. Happy birthday!

Happiest birthday to the woman who treats me like her own sister even though we’re not related by blood. Thank you, my adorable sister, in law! Your cuteness, intelligence, and prettiness bring so much happiness to the family!

Happy Birthday Sister in Law Greetings

These Happy Birthday Sister in Law Greetings will surely make your sister’s day more special and fun.

Sister in law birthday wishes

Sister in law, I know I can always count on you and that’s something I really appreciate about you. No matter how big my problems, you have provided me with constant love and support. Thank you so much for all that you do. May God continue to bless you!

Happy birthday to you, my adorable sister in law! May your belly be filled with cake, hearts filled with compassion, and hands filled with amazing presents! May you enjoy your special day, my phenomenal sis in law!


Happy birthday my dear sis in law! You’re so lucky to have married a good husband who has an awesome sister. But I know I am luckier because I get to have a sister in law who I also consider as my best friend!


Happy birthday my dear sister in law! I’m truly grateful to God that He gave me such a spending sister in law! May your birthday be as amazing as you are and may our friendship continue to grow stronger each and every day!


My brother may be known for a lot of things but making good choices in women is not one of those! However, when I found out about you, I realized I was wrong this time. He actually made the best decision for choosing to marry you. Happy birthday to you, my amazing sister in law!


Whenever I think about you, I cannot help but be amazed at how generous and kind of a person you are. I’m truly lucky that you have become a member of the family. Happy birthday!


As the only girl in the family, I felt sad by the fact that I won’t experience how it is to have a sister with whom I can share secrets with. But when you came to our life, I can’t thank God enough for giving me a sister in law who treats me like her own sister!


Happiest birthday to my wife’s amazing sister. When I met you, I immediately understand where my wife got her strength, tenacity, and charm! Thank you for being an amazing sister in law!


I’m really worried about how you will have an impact on my brother’s life. However, I was blind enough to realize how you will actually have a great impact on my own life! You have certainly made such a meaningful and deep impression of the entire family. Happy birthday!


Sister in law, I’m admiring you and at the same time, I am a bit jealous of how perfect you are. But don’t think of that as something bad. I’m just really inspired by you. Happy birthday!


I’m truly grateful that I have you as my sister in law. It’s through you that I have learned all about my brother’s secrets. Thank you so much for sharing lots of funny moments and happy memories with me. Happy birthday!


Happy birthday to you, my dear sis in law! Please know that my brother has actually inherited from me all the good traits you see in him. Therefore, you need to thank me because you now have an awesome husband! Happy birthday!


Happy birthday to you, my dear sister in law! Even though we’re not related by blood, but you’re actually the closest to me in the family! Thank you so much for coming into our lives!


I have always been so close to my brother so I have to admit that I was feeling anxious when he decided to marry you. But thank you for you never got in the way of our closeness to each other. Happy birthday!


Happy birthday! You’re such a wonderful and sweet sister in law to me and I just wanted to tell you today that I’m so glad you choose to be a part of our crazy family. May God continue to bless you with all the things you desire!


One of the great things about having you as my sister in law is that we do not need to go through that awkward moment of growing up together. Instead, we’ve skipped straight to the best part – becoming the best of friends! Happy birthday!


Happy birthday my dear sis in law! You always seem to be on top of all things and it amazes me how you never seem to age a bit. It seems like you are a magician! Can you actually share to me what your secret is?


I do not need any notifications to remind me that your birthday is today, my dear sister in law! How can I ever forget the special day of a bright, talented, and gorgeous woman like you? Happy birthday!


Here’s wishing my amazing sister in law a very happy birthday! Please know that you’re very special to me and we are so grateful that you choose to marry my brother and be a part of our family.


Happy birthday my dear sister in law! Here’s wishing you lots of treasure, fortune, and wealth for this year. You’re a really amazing person and I’m so blessed to call you my sister in law!


My dear sis in law, it amazes me how my daughters love you more than they love me! Thank you so much for being not only a great sister in law to me but a wonderful auntie to my kids as well! Happy birthday!


As for me, one of the best things about your birthday is the fact that I get to hear your laughter and giggles all day long. It really warms my heart since you’re a great addition to the family. Happy birthday!

I could not ask for a better sis in law because you already have everything in you! So on your birthday today, I just want to wish you a very happy birthday and may you achieve all of the things you ever wished for in life. Happy birthday!

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