John Joseph Fitzgerald (March 10, 1872 – May 13, 1952) was an American lawyer and politician who served nine terms as a United States Representative from New York from 1899 to 1917.

Born in Brooklyn, he attended the public schools, La Salle Military Academy (formerly Sacred Heart Academy), and graduated from Manhattan College in 1891.

Fitzgerald was elected as a Democrat to the Fifty-Sixth and to the nine succeeding Congresses and held office from March 4, 1899, to December 31, 1917, when he resigned to resume the practice of law.

In the Sixty-Second through Sixty-Fifth Congresses he was chairman of the Committee on Appropriations.

He resumed the private practice of law and in 1952 died in Brooklyn; interment was in St. John's Cemetery, Middle Village, Queens.