Grandpa, it’s you who taught me that a man should be respectful, considerate, generous, and kind. Thank you for the example that you set. I am who I am today because of the things you taught me. Happy birthday!

Grandpa, thank you for listening to me as I’ve attempted to sort things out between us. Thank you for accepting me for who I am and for still loving me despite of my shortcomings. Happy birthday!

By relation, you are my father-in-law, but for me, you are my big supporter and a good caretaker among all in-laws.

If someone saw how well we get along with each other, they would never figure out that you are not my birth father. Happy birthday, dad-in-law.

Grandpa, you’re the coolest senior citizen I know and I’m really glad I happen to be one of your granddaughters. Happy birthday, grandpa! May you live a healthier and longer life! I love you!

A cup of coffee with you every weekend equals a thousand hours worth of wisdom gained through life experience. Happy birthday grandpa.

Happy birthday, father-in-law! Truth be told, I was worried that you’d be one of the intimidating old men. How relieved I was to find that you’re the most delightful one ever!

Many things have changed over the years, but your love and care for me still remained long after I have entered your family. Best birthday wishes to you, father in law.

Full of wisdom, full of fun. Full of charm, my grandpa is second to none. Full of manners, full of insight. Full of inspiration, my grandpa is always right. Happy birthday.

Happy birthday my grandpa! Please know that I’m always here to love you. My only prayer is for God to give you many more birthdays and to bless you more and more each day because you only deserve to be happy. I love you!

May your troubles be less and may your blessings be more. And nothing but happiness comes through your door. Happy Birthday, my Dad in Law!

My grandpa, thank you for being my inspiration in life. Your words are my strength and your successes are the reason why I continue to work so hard. Everything I have now, I owe them to you. Happy birthday!

May your troubles be less and may your blessings be more, and nothing but happiness comes through your door. Happy Birthday my dad-in-law.

A very special person like you deserves an equally special birthday party! So today, father-in-law, we will have a blast! Cheers to another year of creating memories together. Happy birthday!

Grandpa, your smile lights up each and every corner of the room as you enter. May you shine even brightly on your birthday! I love you so much, happy birthday!

Happy birthday grandpa! Every time this special day comes, I would make sure to say a prayer of thanks. It’s because I’m very grateful to God for adding another year in your life because that just means another amazing year spent with you!

For a special father in law on his birthday, hope that you get a delicious slice of cake and find something good to watch while you kick-back and relax.

I’ve got no worries with my married life. It’s because I married the one of the most awesome person in the world who’s definitely just like you. Best Bday to my dearest Father-in-law!

Thank God he gave me your daughter to be my wife. If not, I wouldn’t have the chance to have an awesome Father-in-law like you. Happy Bday Daddy!

Happiest birthday to the best grandpa I know! Thank you for all the life lessons you shared to me. Your advices have pointed me towards the right track in life. I love you so much!

You are a great father and an even better father-in-law to me, and I hope you live longer than all of us so you can spread your wisdom and love throughout.

Best Bday to the coolest Daddy-in-law in the world! Today, take your time to relax and enjoy the rest of the day by doing the things you love the most and the things you still wish to do. Have a great day!

Ever since day one, my respect for you has always been the highest. You are one of the most remarkable people I have ever known and I thank God for that. Happy birthday, father-in-law!

With all the love in my heart, I would like to greet you a very happy birthday! You have changed our lives tremendously and we thank you for that. Love you, father-in-law!

Since you are dominating most of it, the future looks better than before. The best Bday to one of the best men I have ever known – my father-in-law.

Happy birthday to my second daddy! My advice for you – don’t count your years, just enjoy your time with friends. Wish you always to be so young and full of good emotions. Congratulations, father-in-law!

I have always believed that a grandfather is a dad who never punishes me, never shouts at me, never grounds me and always showers me with gifts. Happy birthday gramps.

I don’t think that calling you father-in-law would still be appropriate neither calling you by your name. I think I should call you dad. Right, Happy Birthday Daddy!

My dearest grandpa, you are truly amazing! Thank you for shaping me to the kind of person I am today. You always push me to aim high and reach for the stars and I’m glad that I listened to you. Happy birthday!

Father-in-law – You have given me the best gift which is someone to love for the rest of my life. Warmest wishes for a Happy Birthday.