Here, you will find the best birthday wishes for your niece. There are many ways to celebrate her special day like sending her a message, writing an ecard or gifting her with any gift. These funny quotes for 10 year old girls will surely impress them and inspire in your own way.

Birthday Wishes For A 10 Year Old Niece

1. Dear dear niece, today is one of the most important days of your life. You have grown up and become more mature every day. I wish you a happy birthday.
2. Niece, today is your special day and I want to wish you a great birthday. Like all your life you were loved by me. I do hope you will find the life you desire. The seeds planted in your growing years gave us growth and so did the challenges that nurtured you and helped build your character.
3. Today, I thank and appreciate you for the 10 years of your life. You are special. Happy birthday!
4. Happy birthday Niece! You’re like my little sister and have been through so much already. I wish you all the best in life!
5. If you are reading this letter, it means you turned 10! A lot has happened since that very day. You have come a long way, so I would like to take a moment to wish you happy birthday. Your dear smile and your kindness leads me through life with confidence knowing that my family loves you as much as I do. I hope you receive more gifts from others than the old computer that we promised you but never bought. Wishing you a happy birthday!
6. Dear Karen, Happy Birthday! Your dad, your sister and I are very happy to see you turning 10 years old today. We also want you to know that we love you very much and in a short time, we have gotten to know each other so well. You never promised anything special for your birthday. However, it’s a great day for you to be ten because you will get a lot of presents from yourself, from your family and from friends. Love you!
7. You are my little princess! So thank you for being the funniest, sweetest and most beautiful girl in the whole world. Thank you for always making this birthday celebration very special and enjoyable. You made today a special day for me as well as me . You amaze me with your splendid sense of humor, so much; I’m always laughing with you. You brought so much joy into my life, thank you for that. Happy Birthday to you my little angel!
8. Since you’re turning 10, I thought of what I want to say for you! First of all, Happy birthday. You’ve achieved so much now that you seem to have forgotten what it was like when you were younger. If I were you, I’d keep reminding yourself what a bit of happiness can do. Don’t get too old that you stop believing in all the dreams of your little heart.
9. Hello! I would like to wish a very Happy Day to you. You are very important to me and I value your happiness as an egg has no different value from any other egg. Like all eggs, you have potentials, the opportunity to be more awesome than the previous one. Happy birthday!
10. Dear little Princess! You’re 10th birthday is coming up, and that’s awesome! I better wish you a happy birthday before we celebrate it together with all your friends and family!
11. Happy birthday to you little girl! I’m so happy to see you on this day. Today is your special day, and you deserve all the happiness in the world!
12. Happy 10th birthday. Many wishes come with this day, both sweet and sour. Mine is to wish you well. You are a little girl of whom people are proud. I am proud of you and the effort you have put in!
13. Dear niece, there’s nothing I can say that will make your birthday any more special. Because it is special in and of itself… so thank you for all the joy you bring to my life!
14. On this special occasion, my brothermates wish you a happy birthday! May your 10th year be full of all the best things in the world and I love you so much.
15. Hey, it’s your 10th birthday today. Are you excited? I can’t wait to spend the day with you doing all sorts of fun activities I’ve planned. I hope you have a great birthday!
16. What a sweet and attractive little niece you are! It has been more than 10 years since we last meet. With your naughty nature, how are you growing up? Happy birthday from your uncle who will forever be fond of you.
17. You are such a wonderful person. You take care of me even if you are not here. I am so lucky to have you in my life. I just want to tell you that you’re the best sister in the whole world. Happy birthday my beautiful girl!
18. Niece, you are an amazing strong girl. Your life has been hard since you were born as far as I can tell. You have had your own share of problems to deal with and I figured that is why you are the way you are. Your brave attitude and willingness to go along with anything new in your life is reassuring and commendable. Anybody would want to be around you because of your hard work and intense desire to learn. You have made me proud as a big sister. Happy birthday!
19. This is a 10 year old niece gift tag. Sad occasion comes when someone has to leave but if you are aware of the present, then have that happy birthday. Happy birthday dear niece and have fun with your friends this childhood breaks off and new youth sets on Would you be my best friend?
20. Happy birthday to my beautiful niece with the curly hair and brown eyes. Your special day deserves a huge birthday cake with colorful candles. Thank you for being such an amazing child and making me and everyone else happy. I hope you celebrate your birthday in style this year! Thinking of you on this special day!
21. I have a great aunt who is turning 10 today. Do you know something about her? Well, she is lovely and smart. She always thinks of others and loves her family very much. She is a good example for others to follow. I wish her a very happy birthday!
22. I hope you have a great birthday! May you have all the best wishes, because I know you deserve it!
23. Thank you for sharing your tenth birthday with me. You are a truly sweet and hard-working girl, and I am so proud of the wonderful person you grow to be, despite your tough life.
24. Happy birthday! Thank you for your love and support. I have known you from when we were small, and the day will not be complete without a big celebration in your honor. Take it easy on the adventure, but don’t be afraid to go explore the world because I can always send you messages if anything goes wrong. I wish you the best life possible for your 10th birthday!
25. Dear niece, I hope you had a great morning. You will be a lady soon enough, so I hope you listen to your parents and have some fun before you become all serious. Happy Birthday!
26. I want to wish my little niece a very happy birthday! I know you are our baby, and we never want you to change. We love you so much, but please watch out for cars. You cannot run fast, so don’t try to sprint across the street like we did the other day!
27. On your birthday today, I would like to tell you: You are very special and I wish you all the best. Your birthday is on the 17th of June. Happy Birthday!
28. Hi, I’m your guardian angel. I believe that you are doing great. I take care of you as much as I can, and I will always support you no matter what! Today is a happy day for you. Wishing you happy birthday and lots of fun.
29. Dear 10 year old niece, the best birthday you can hope for is to have the chance to have happy moments and great memories before you grow up. Happy birthday from me to you!
30. You are an angel in disguise and my favourite niece. I can’t imagine a world where you don’t exist in. Happy 10th birthday!
31. I would like to thank you for planting a seed of penury in my family. I love you so much and that’s why I’m sending you this birthday card today. Happy birthday!
32. It’s my birthday as well! While I am nervous about you being a big sister, I can’t wait for you to grow up and live life on your own. Thank you for being so kind at this young age.
33. May this day be filled with joy and laughter! I know your family has always been very close to me. I hope you have a great birthday party and I wish you all the best in the future. Sincerely, _____.
34. Today should be a special day for you. Have always looked up to you and been proud of your accomplishments. As an aunt, I have stood by your side through thick and thin. Now is the time when I wish you all the best as an upcoming young lady in life.
35. You are my favorite child right now, and I love you very much. I’m so happy that you are making your dreams come true. I love you dear! Happy birthday.
36. Hello sweetie! Many things have changed in your life in the past ten years of age. You know how I feel about you. I am happy that you are growing up and having so many fun times. You can trust me to always have your back when you need helping out. I hope that you will be a hermit for the rest of the year; hobbies are frowned upon!
37. Today should be a special day for you because now you will not be a child anymore and instead you will be a woman, a young woman who is old enough to choose her own path.
38. Happy Birthday to a special little girl who is a wonderful girl. I especially thank God for blessing me with the privilege to raise you. I am proud of you for your successes and happy that you will be ten years old today. Remember your dreams, your hopes, and your awareness of self that guided you to become such a wonderful person…I love you!
39. Happy birthday to you! You’re only 10 years old, so I’m not sure if you understand why I am writing this card. However, I hope that it expresses my appreciation and love for you. I never had a best friend like you. The memory of all the time we spent together is still a beautiful one. A birthday wish may seem stupid now, but at your age it’s an opportunity for me to remember everything good that has occurred in my life because of you. 
40. Greetings from your loving niece Diana. You have always been so kind to me whenever I would come visit you and my brother, so I wanted to show you how much I appreciate everything you’ve done for me. It’s no wonder mom always says that we are a team! Happy birthday!!!
41. Happy Birthday! What a joy your smiles have brought to my life! From the bottom of my heart, I wish you many more birthdays in the future!
42. Happy Birthday to a special little girl. I hope it’s your favorite day of the year! Celebrate with family and friends this special day. Whether we agree with each other or not, our opinions are metaphorical. Let us sample the cake and see what we can learn before we grow up to become more like those around us!
43. Happy Birthday! I hope that you like your present, and that it will always make you smile. I am looking forward to many more birthdays and perhaps I’ll even be able to get a little work done.

Also See: Birthday Wishes For A 10 Year Old Grandson