Giordano's is an American pizzeria chain that specializes in Chicago-style stuffed pizza. Brothers Efren and Joseph Boglio founded Giordano's in 1974 in Chicago, Illinois. The pizzeria has since expanded to over 65 locations in Colorado, Florida, Indiana, Iowa, Minnesota, Ohio, Nevada, and Wisconsin. The chain has also expanded to offer catering and ship frozen pizzas in the United States.

Chicago-style pizza is pizza prepared according to several styles developed in Chicago. It can refer to both the well-known deep-dish or stuffed pizzas and the lesser-known thin-crust tavern-style pizzas. The pan in which deep-dish pizza is baked gives the pizza its characteristically high edge, which provides ample space for large amounts of cheese and a chunky tomato sauce. Chicago-style deep-dish pizza may be prepared in the deep-dish style and as a stuffed pizza. Chicago-style thin-crust pizza dough is rolled for a thinner crispier crust than other thin-crust styles. The thin-crust pizza is cut in squares instead of slices, and is also referred to as a "tavern-style" pizza.