John Henry McCarthy (November 16, 1850 – February 5, 1908) was an American lawyer, jurist, and politician who served one term as a U.S. Representative from New York from 1889 to 1891.

Born in New York City, McCarthy attended De La Salle Institute, Christian Brothers, and St. Francis Xavier College.

McCarthy was elected as a Democrat to the Fifty-first Congress and served from March 4, 1889, until his resignation on January 14, 1891, to accept a judicial position.

McCarthy was elected and reelected to the same office and served from 1891 until his death in New York City on February 5, 1908.

This article incorporates public domain material from the Biographical Directory of the United States Congress