National Deep Dish Pizza Day | April 5
(Last Updated On: March 29, 2023)


On April 5th, National Deep Dish Pizza Day gives pizza lovers a day to celebrate one of America’s favorite varieties of pizza. 


Whether it’s dine-in, delivered, take out or homemade, deep-dish pizza satisfies pizza lovers all across the country. Pick whatever toppings you like. This day focuses on the deep crust that holds an amazing amount of sauce and toppings. Like other styles of pizza, the deep-dish menu offers a variety of combinations to choose from. If you prefer an all meat pizza, the deep-dish makes it. Top it with vegetables galore. Or order extra mushrooms, the deep-dish can manage. 

  • In ancient Greece, the Greeks covered their bread with oils, herbs, and cheese which some people believe is the beginning of the pizza.
  • In Byzantine Greek, the word was spelled “πίτα,” pita, meaning pie. 
  • A sheet of dough topped with cheese and honey, then flavored with bay leaves was developed by the Romans.
  • The modern pizza had its beginning in Italy as the Neapolitan flatbread.
  • The original pizza used only mozzarella cheese, mainly the highest quality buffalo mozzarella variant which was produced in the area surrounding Naples.
  • It was estimated that the annual production of pizza cheese in the United States in 1997 was 2 billion pounds.
  • The first United States pizza establishment opened in 1905 in New York’s Little Italy.
  • Pizza has become one of America’s favorite meals.


  • Order (or make) your pizza a deep dish one.
  • Top it with any toppings you like, too!
  • Give a shout-out to the pizzeria that makes the best deep dish.
  • Share recipes
  • Use #DeepDishPizzaDay to post on social media.
  • Deep Dish Pizza Day isn’t the same unless you’re wearing socks to match! Get these and more here.

Pizza Socks Men


National Day Calendar continues researching the origins of this food holiday. 

Deep Dish FAQ

Q. How many different cities have a pizza named after them?
A. As many people know, Chicago is known for its tasty deep-dish pizzas. But it’s not the only city to lay claim to a pizza style. Check these out for a tour of pizza cities:

  • Detroit-style – This deep dish pizza is a result of Detroit’s deeply rooted automobile industry. The first Detroit-style pizzas were baked in square automotive pans giving the pizza a unique shape.
  • St. Louis-style – Made with a thin and crispy cracker crust, the St. Louis-style pizza is often cut into squares.
  • New York-style – Do you fold your pizza? Well, New Yorkers do and the New York-style of pizza is perfectly foldable.
  • D.C.-style – These jumbo slices of pizza pie are…well…massive! Eating one is equal to eating three to four slices of a regular pizza slice for many people.
  • Omaha-style – It’s all about the meat topping this biscuit-style crust in Nebraska. In between, a thin layer of sauce brings it all together.

Q. How many kinds of pizza are there?
A. Considering the variety of doughs, toppings, sauces, and cooking methods, pizzas are as varied as a food can be. Start exploring with these:

  • Neapolitan – Simply made with fresh ingredients including basil, fresh mozzarella, and tomatoes
  • Stuffed – Two layers of dough are stuffed with all ingredients that normally top a traditional pizza
  • Greek – Expect a little more dough and Mediterranean flavors with this pizza


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