Peter Paul O'Dwyer was an Irish-born American politician and civil rights lawyer who served as President of the New York City Council during 1974–1977. He was the younger brother of Mayor William O'Dwyer, and the father of New York State Gaming Commission Chair Brian O'Dwyer.

William O'Dwyer was an Irish-American politician who served as the 100th Mayor of New York City, holding that office from 1946 to 1950. O'Dwyer went on to serve President Harry Truman as Ambassador to Mexico from 1950–1952. O'Dwyer began his political career by serving as the Kings County District Attorney from 1940–45. His brother Paul O'Dwyer served as President of the City Council from 1973–77, and his nephew Brian O'Dwyer was appointed by Governor Kathy Hochul as New York State Gaming Commission Chair in 2022.