| State: | New York |
| Term Start: | January 3, 1945 |
| Term End: | January 3, 1947 |
| Predecessor: | Hamilton Fish III |
| Successor: | David M. Potts |
| State Assembly2: | New York |
| District2: | 6th Bronx County |
| Term Start2: | January 1, 1936 |
| Term End2: | December 31, 1944 |
| Predecessor2: | Christopher C. McGrath |
| Successor2: | Julius J. Gans |
| Birth Name: | Peter Anthony Quinn |
| Birth Date: | 10 May 1904 |
| Birth Place: | New York City, U.S. |
| Death Place: | New York City, U.S. |
| Party: | Democratic |
| Spouse: | Viola Murphy |
Peter Anthony Quinn (May 10, 1904 – December 23, 1974) of New York City was a Democratic U.S. Representative from New York from 1945 to 1947. Quinn was a justice of the New York Supreme Court from 1955 to 1974.
Peter A. Quinn was born in New York City on May 10, 1904. He attended the St. Brigid’s and St. Raymond’s School, and graduated from Manhattan Preparatory School in 1922. He graduated from Manhattan College in 1926; and from Fordham University School of Law in 1929. He was admitted to the bar in 1931, and practiced in New York City.
Quinn was a member of the New York State Assembly (Bronx Co., 6th D.) from 1936 to 1944.
He was elected as a Democrat to the 79th United States Congress, holding office from January 3, 1945, to January 3, 1947. He ran unsuccessfully for reelection in 1946 and resumed his law practice.
In January 1949, Quinn became a Judge on New York City's Municipal Court. From 1955 to 1960 he was a Judge on the City Court, and Chief Judge beginning in 1957. In 1960, Quinn was elected a justice of the New York Supreme Court, and remained on the bench until his death.
Quinn died on December 23, 1974, in the Bronx; and was buried at St. Joseph’s Cemetery in Hackensack, New Jersey.
His son Peter Quinn is an author whose works include 2007's Looking for Jimmy: A Search for Irish America.