The Special Day of a Great Sis | Happy Birthday, Sister-in-Law!

Last modified: June 16, 2019

If your sister-in-law’s birthday is right around the corner yet you lack the perfect words of appreciation, don’t fret.

Below we have put together quotes that you can use at your own discretion to add even more joy to an already special occasion.

I will always admire you for your exceptional bravery. Have a wonderful birthday!
Please accept this gift not only in regard to your birthday but also as gratitude for getting him out of the house.
The reason we were able to buy you such an expensive birthday cake is because you took the biggest eater out of our house.

In addition to all of your overt qualities, I know you must also possess an outstanding tolerance to excessive chatter. Have a celebration that is truly fantabulous!
Today I wanted to get you a gift that would be useful in your marriage, so I bought you a pair of boxing gloves.
Out of all the men you could have chosen, we will always appreciate the fact that you humbled yourself to take our brother.
The one thing I truly wish for you on your birthday is that you would hook me up with one of your friends!

Happy birthday to the sweetest sister in law.

Behind every great woman is a great man, and we hope you’re able to accomplish many great things in life with such a faithful sidekick.
You are more than he deserves, so please accept this birthday gift as a form of restitution for marrying my big bro!
I hope you thoroughly enjoy this birthday treat, sis, and remember – don’t give him any after midnight!
Any woman who has taken on the responsibility of shaving that man’s back truly deserves a birthday gift.
Looking at you, I know that big bro has accomplished at least one good thing in his life.
May my sister-in-law grow so old that we’ll need a birthday cake the size of a car tire just to hold the candles!
You are already my favorite sibling. I hope you have a sweet birthday!

I hope you, your kids and that knucklehead all have a wonderful day!
I am wishing the best day imaginable to my lovely birthday girl-in-law.
As a birthday gift, I’m willing to take the children off your hands and give you rest if only for one precious day.

Happy birthday to an invaluable and much-beloved member of our family.
We are so grateful that an additional holiday – your birthday – has been added to our calendar!
I have never seen my brother so happy. Happy birthday to the woman who has saved his life!
Today we are not imparting sweet birthday wishes onto a normal person but rather an angel in disguise.

Happy Birthday to my beloved sister in law.

The true pleasure of this day is having the opportunity to celebrate the life of a new sister.
Our brother gained an irreplaceable wife, but we have also been blessed with an invaluable sister. Have an excellently joyful birthday.
This is a beautiful day indeed, when we honor the life of one of the queens of our family! May your heart forever feel the joy heaven.
Words can’t express how great it feels to have the opportunity to wish you a wonderful birthday!
I can’t believe that I now have a sister. This day of the year truly is a blessing!
The law in my heart dictates that I will always love my sister. Have a pleasant birthday, dear.
You grow more beautiful with each passing year. Perhaps my brother is smarter than he looks!
You know my being the person I am, I have to let the whole world know today is your birthday!
May this blessed day compensate you with the same joy and gratitude that you have brought into our lives.

If it seems like I forgot your special day – just know that I was waiting for this perfect moment to give you this surprise!
I wish I had the opportunity to give you a gift every day of the year!
We awoke this morning to the dawn of a great day in our household. Your birthday is truly a reason to get our party on!
Our only goal for this extraordinary day is to make you feel appreciated and at home. We love you so immensely, dear.
I wish circumstances brought us together more often, but for now, I am overjoyed to be spending this precious day with you!
It feels so wonderful to now be able to wish you a happy birthday as a full-fledged sibling!

I have received many blessings in life, but getting you as a sister certainly trumps them all!

May this birthday celebration serve as a symbol of how happy we are to have you in our family. Your life is beyond inspirational to all of us.
Just imagine – next year we will be celebrating this occasion along with your new baby!
This birthday gift is just to remind you that wherever life takes you, we always have your back!

Knowing someone as great as you is my sister makes me feel more confident in life. May your birthday be highlighted by the love and appreciation that you deserve.
I know greatness when I see it, and today I am wishing a splendid birthday to an extraordinary sister-in-law! You are great and will forever be.
May your future prove to you that the best days of your life still lie ahead!
I know you are going through a rough time right now, but that has not quenched my love for you.
I hope to one day also be blessed with a wife as precious as you. May you enjoy a long, loving life.

My brother has been truly be gifted with a beautiful partner, but today it is you who receives a gift! Keep believing in yourself and no force in the universe can ever stop you from achieving your goals and dreams.
I see a destiny full of great happiness, prosperity, love, romance and numerous dependents lying ahead of you!
You are the greatest sister-in-law in the history of the world. It brings me great honor to wish upon you a stupendous birthday!
I hope this day proves to be as wonderful and inspirational to you as you have always been to me.