Peter Charles Granata (born October 28, 1898) was a Republican member of the United States House of Representatives from Illinois. He represented Illinois’s 8th Congressional District during the early 1930s, serving a single term in Congress. His tenure places him among the historical members of Congress who participated in national legislative affairs during a period of significant economic and political change in the United States.

Granata served as a Representative from December 7, 1931, to March 3, 1933. During this time, he held office as a member of the Republican Party, representing the interests of his Illinois constituents in the House of Representatives. After the conclusion of this term, he left Congress and is recorded as a former officeholder. Further details about his committee assignments, subsequent career, or personal life are not provided in the available metadata.