Peter Joseph Dooling (February 15, 1857 – October 18, 1931) was an American businessman and politician who served four terms as a U.S. Representative from New York from 1913 to 1921.

Born in New York City, Dooling attended the public schools.

He served as member of the board of aldermen of New York City in 1891 and 1892.

Deputy commissioner of the department of water supply, gas, and electricity in 1898–1901.

Dooling was elected as a Democrat to the sixty-third and to the three succeeding congresses (March 4, 1913 – March 3, 1921), and served as chairman of the committee on expenditures in the Department of War (sixty-fifth congress).