Birthdays are a time for joy, a time for celebration, and a time for counting your blessings. So let’s do just that on your sister’s special day. Let’s take a moment to think about all of the things that we are grateful for when it comes to our dear sister.

This is a fact that growing up with your sister is a blessed experience that many people are deprived of. If you have a sister, you should thank your parents and God for giving you such an amazing gift. Sisters make our lives infinitely better and more fun. They are our best friends, our confidantes, and our partners in crime. So on this day, let’s celebrate our sisters and all that they mean to us!

One of the most anxious things that people face is they often get short on words when it times to wish a birthday to their sister. They try to write their best but often they fall short of great words. If you are one of those people who get anxious about writing a birthday wish for their sister, here are 21 birthday wishes for sister that will make her day even more special:

These wishes are full of love and happiness for your sister’s birthday. No matter what kind of wishes you want, we have almost all kinds of wishes below.

21st Birthday Wishes for Sister

Happy 21st birthday, gorgeous! You are my rock star. There are few people on this earth who can touch my heart as you do. Happy birthday, sis!

To my amazing sister: happy 21st birthday! You deserve all the good things’ life has to offer. “I’m so proud of everything you’ve accomplished, and I can’t wait to see what the next 21 years bring.”

On this special day, I want to make sure you know how much I love you and how grateful I am to have you as my sister. I hope your 21st birthday is as wonderful as you are.

 I wish you all the happiness in the world on your 21st birthday. You deserve nothing less than the best life has to offer. May this birthday be filled with all the things that make you so special to me: fun, laughter, and all the love in the world. Happy birthday, sis!

 Congratulations on reaching this significant milestone! I know that you will continue to achieve great things in the years ahead. Happy 21st birthday, My beautiful sis! God bless you.

I am so proud of everything you have accomplished thus far, and I know that there is even more greatness yet to come from you. Happy 21st birthday to the most beautiful sister in the world. I’ll always remember your birthday as one of the best days of my life. I love you so much, and I’m so glad we’re sisters!

21st Birthday Wishes for Younger Sister

“Sister, I’m so grateful to be able to celebrate your 21st birthday with you. You’ve grown into an amazing young woman, and I’m so proud of you. I hope this next year is full of lots of love, happiness, and smiles.” Happy birthday, My younger sister!

“Wishing my lovely younger sister a very happy 21st birthday! You’re such a kind-hearted, beautiful person inside and out. I hope your day is as wonderful as you are.”

To my lovely younger sister, happy 21st birthday: I hope this year is full of adventure, happiness, and lots of new experiences. You deserve all the good things’ life has to offer, and I know you’ll achieve great things. I’m so proud of the woman you’re becoming, and I can’t wait to see what the future holds for you. Have an unforgettable day!

Wishing my amazing younger sister a very happy 21st birthday! You’re such a kind, smart and talented woman with a bright future ahead of you. I hope that you will always be the happiest young lady around. Happy birthday.

To my lovely younger sister, may your 21st birthday be as bright and beautiful as you are. You bring joy to everyone around you, and I’m so blessed to have you in my life. I hope this next year is even better than the last. Happy birthday!

Wishing my amazing younger sister a very happy 21st birthday! You’re one of the most kind-hearted, talented people I know, and I look up to you so much. I hope your birthday is as wonderful as you are. Love you always!

21st Birthday Wishes for Elder Sister

“Happy 21st birthday, elder sis! I hope this year is full of lots of happiness, love, and laughter. You deserve all the good things life has to offer. I love you from the bottom of my heart.”

Wishing my wonderful elder sister a very happy 21st birthday! You’re an amazing role model and friend, and I feel so lucky to have you in my life. May your 21st birthday be filled with celebration and new opportunities. As you look back on the past and move forward into the future, we wish you a very happy and successful 21st.

Happy 21st birthday, elder sis! I hope this year is as amazing as you are. You deserve nothing but the best on your special day. I’m so proud of the woman you’ve become, and I can’t wait to see what the future holds for you.

May your 21st year be filled with lots of love, laughter, and happiness. You’re such a special person with a heart of gold. I feel so blessed to have you as my sister and friend. Wishing you all the best on your big day! Happy 21st birthday, My elder sister!

“Wishing my amazing elder sister a very happy 21st birthday! You’re such an inspiration to me, and I’m so grateful to have you in my life. May you have many, many more birthdays filled with love and laughter. Happy birthday! Enjoy your special day! 

“Happy 21st birthday to my lovely elder sister! I hope you have a day that’s as wonderful as you are.  I hope that the rest of your life is filled with great memories and all the happiness in the world. Happy birthday to my favorite person.

21st Birthday Wishes for Sister From Brother

 Happy 21st birthday, My amazing sister! From the brother! I just want to let you know that I’ll always be there for you, no matter what life throws our way. Happy birthday! I love you, and I’m so happy to have you in my life! Thank you for being such a great sister.

To my amazing sister, who has always been there for me and who I know will always be one of my best friends. I feel so lucky to be your brother. Happy 21st birthday! I hope all of your dreams and aspirations come true.

Happy 21st birthday, My beautiful sis! Have an incredible day and enjoy everything that comes with this new chapter in your life. I’m proud of you, not only for being an awesome sister but also for being a wonderful person. Happy birthday! Your brother always loves you.

“Wishing my lovely sister a very happy 21st birthday! You’re one of the most incredible people I know, and I’m so proud of everything you’ve accomplished. Here’s to even more amazing years ahead! Lots of love from your brother.

“Wishing my beautiful sister a very happy 21st birthday! You’re one of the most special people in my life, and I’m so lucky to have you as my sister. Your brother will be always with you. Happy birthday!

Religious 21st Birthday Wishes for Sister

 May God bless you with many more years of good health and happiness. May your days be filled with love, laughter, and all the good things in life. Happy 21st birthday, My sis!

 Happy 21st birthday, sis! I pray that you will always know the joy of His presence in your life. May God grant you wisdom and strength as you continue to grow in your faith. 

Happy 21st birthday, My lovely sister! I pray that your 21st year will be one of blessings and growth in all areas of your life. Thanks for being the best sister in the whole wide world! Happy birthday!

 Happy 21st birthday, sister! We thank God for His many blessings in your life, and we look forward to seeing all the wonderful things He will do in your future. Enjoy every moment of your day and may you always have a great year ahead of you.

“Wishing you a blessed 21st birthday! You’ve grown into such an amazing young woman, and I know that God has great things in store for you. I’m so proud to be your sister!” May God bless you and always keep you safe. I pray that you will always find happiness and that your dreams come true. Happy birthday, sis!

Happy 21st birthday, My beautiful sister! I am so grateful to have you as my sister, and I cherish our relationship more than you could ever know. On this day, I ask God to bless you with all the good things in life. May your days be filled with happiness, love, and laughter.

Heart Touching 21st Birthday Wishes for Sister

On this special day, I want to let you know how much I love you and how grateful I am to have you as my sister. You are my best friend and I will always be there for you, no matter what. My heart is full of so much love and kindness that comes from you. I hope your 21st birthday is as wonderful as you are. Happy birthday, sis!

 Happy 21st birthday, sis! I’m so grateful to have you in my life. You’re one in a million, my sister! I am blessed to have such a wonderful sister like you. You’re my best friend and I love you from the bottom of my heart. Wishing you all the happiness in the world on your special day!

Happy 21st birthday, My lovely sister! You’ve always been my role model, and I admire you more than you could ever possibly know. You deserve all the wonderful things life has to offer. My wishes for your 21st birthday are that you continue to enjoy all the things in life that bring happiness: family, friends, music, dancing, travel, and much more.

On this special day, I wanted to let you know how much I love you and how grateful I am to have you as my sister. You’ve always been there for me, even when I didn’t deserve it. I hope that 21 brings you all the happiness your heart can hold. Happy 21st birthday, sis!

21 is a milestone year full of new opportunities and experiences. I can’t wait to see all the amazing things you’re going to do in this next phase of your life. You finally have all the freedom in the world to do whatever you want. I’m so glad you get to do what you want when you want. Happy 21st birthday, My sis!

Inspirational 21st Birthday Wishes for Sister

“Wishing my amazing sister a wonderful 21st birthday! You’re one of the most inspiring people I know, and I look up to you in so many ways. Keep shining your light!” Your loving nature, your ability to make everyone feel comfortable, and the pure joy you bring into this world are an inspiration to me every single day. Happy birthday!

On this special day, I wish you all the happiness in the world. I hope your dreams and aspirations become a reality. Never forget how much you are loved and how important you are to so many people. You are an amazing sister and friend, and I feel so blessed to have you in my life. Happy 21st birthday, My sis!

“Sis, you’re one of the strongest, most determined people I know. You never give up, even when things get tough. I admire your strength and resilience, and I know that you can accomplish anything you set your mind to. Happy 21st birthday!”

Happy 21st birthday, My beautiful sister! You’re such a caring and compassionate person, always putting others before yourself. You have a heart of gold, and I know that you’ll use it to make the world a better place.

Happy 21st birthday, My lovely sister! You’re finally a legal adult! It’s been amazing watching you grow up into the strong, beautiful woman you are today. I can’t wait to see what the next year brings for you.“21 is an age that comes around once, but it’s only the beginning of your journey through life. I wish you all the best in this new phase of your life. May all your dreams and aspirations come true.”

I couldn’t be more proud of the woman you’ve become, and I can’t wait to see all the amazing things you’ll do in the years to come. Happy 21st birthday, sis! I hope your day is as special as you are.

Special 21st Birthday Wishes for Sister

 Happy 21st birthday, My sweet sis! I am so grateful to have you as my sister and my best friend. I hope you have a birthday that is as wonderful as you are. Wishing you all the happiness in the world on your special day. I love you so much, sis! 

 May your 21st birthday be the start of something amazing! I can’t wait to see all the great things you accomplish in life.  I hope you find happiness in everything you do. You deserve it! Happy 21st birthday, sis!

I can’t believe it’s been 21 years already! Time flies when you’re having fun, huh? Happy birthday, sis. Here’s to many more years of laughter and love. I hope that on your birthday this year, you feel like the luckiest person in the world because you are! Happy birthday, sis!

“To my lovely sister, may your 21st birthday be as wonderful as you are. I’m so grateful to have you in my life. I hope all of your dreams and aspirations come true. I’ll be right there cheering you on every step of the way.”

Wishing my beautiful sister a very happy 21st birthday! You’re such an amazing person inside and out. I know that this next year will be even better than the last. Can’t wait to see all the great things you accomplish.

May this year be the best one yet. You’re finally an adult and I couldn’t be more proud of you. I hope you have a wonderful day surrounded by the people you love most. Happy 21st birthday, sis!