1. Dear grandson, I knew it, my sweet boy will turn into a charming young man! Happy 18th birthday!
  2. You are like the best grandson any person could ever ask for, I don’t know what I would do without you here with me. Happy 18th birthday my little boy.
  3. May there be many more happy days to come! Enjoy your 18th birthday, my dear grandson!
  4. My love for you is as strong as your love of spaghetti. Happy birthday, dear grandson. In my eyes and even before pasta, you always come first.
  5. I will forever be thankful to God for keeping me alive to experience the love of such a wonderful grandson like you. My dear, because of you, my life has become an extremely beautiful fairytale. Happy birthday.
  6. I smile every blessed day simply because I’m blessed with the most phenomenal grandson in the world. I love you so much, my dear. Happy birthday.
  7. Hey grandson, you’ve grown up so much over the last year. It’s scary how fast time flies by. Happy 18th birthday!
  8. I want to raise a toast and make you a Birthday wish. But since you’ve just turned 18, I’m sorry I can’t legally do that! Happy 18th Birthday!
  9. Happy 18 birthday grandson. You became a man today, and I couldn’t be more proud. You’ve grown into a beautiful soul and I pray that you keep on the path to success. We love you so much and we can’t wait to see what the world has in store for you.
  10. Happy 18 birthday grandson. You make me so proud. You are my sweet, funny and loving grandson and I am very grateful to have you in my life. Your parents love you very, very much. We can’t wait to celebrate your special day with you, we love you and hope it’s the best birthday ever!
  11. Happy 18th birthday, to my special grandson. I pray that you enjoy many hours sipping coffee, gazing at the stars just as it is your favorite past time.
  12. Happy 18th Birthday! I’m so proud to call you my grandson. Wishing you years of health, happiness, and love! Happy 18th Birthday, Grandson!

You can also Read: Happy 16th Birthday Grandson

Birthday Wishes for 18 Year Old Grandson:

  1. I guess I have to start treating my little bunny as an adult now that he is 18 years old. Happy 18th birthday.
  2. Happy Birthday, Grandson! It’s amazing that you were born exactly one year after me and we’re turning 18 years old on the same day. I’m so proud to be your grandfather and always will be.
  3. Happy Birthday to my 18 year old grandson. I hope you enjoy your special day and all the fun this next year will bring.
  4. Happy 18 birthday grandson. ! I don’t know where the time went, but you’re now 18 years old. Wow. The first couple of birthdays didn’t seem like such a big deal, but at 18 it’s a pretty milestone.  I really hope this next year is a great one for you and that it’s happier than the last. Enjoy your birthday, we love you bunches and bunches!
  5. May the first day of your independent life bring you a lot of great experiences. Happy birthday to a wonderful 18 year old fella.
  6. The pictures of my childhood would have been incomplete if they didn’t have a beautiful face like yours. Happy birthday to the prettiest eighteen year old in the school.

You can also Read: Happy 17th Birthday Grandson

Emma Avery
I'm Emma Avery, the woman behind Pippalee. I’m a professional blogger with an interest in all things music-related. I aspire to help others find their best musical match by providing them with the best information possible! I was writing for over 21 years. And strives to provide you with the best content possible related to Musical Instruments. I love all things musical and am obsessed with anything that can make noise! I also really enjoy spending time outdoors in nature, playing sports, reading good books, and watching scary movies. Just hoping you enjoy reading what we have to say! I started this website in 2009. When I was a kid, my mom would take me to music lessons and we would buy all the sheet music there. That’s when it first dawned on me that not everyone has access to musical instruments This is where Pippalee comes in: and provides you with quality content about Musical Instruments so you can learn more about them and see which ones are right for you!