National Pizza Party Day 2025 Calendar. National pizza party day on may 17 celebrates america's favorite food and america's favorite pastime so grab your friends and get your pizza on! If you have wondered where you can find the best pizza, national pizza party day is the ideal day.

It’s time to party and celebrate national pizza party day on the third friday of may! As national pizza party day continues to grow in popularity, pizza establishments, both large chains and local pizzerias, have started embracing the occasion.