Joseph John Gill (September 21, 1846 – May 22, 1920) was an American lawyer and politician who served two terms as a U.S. Representative from Ohio from 1899 to 1903.

He pursued an academic course and was graduated from the law department of the University of Michigan at Ann Arbor in 1868.

Gill was elected as a Republican to the Fifty-sixth Congress to fill the vacancy caused by the death of Lorenzo Danford.

He was reelected to the Fifty-seventh and Fifty-eighth Congresses and served from December 4, 1899, until October 31, 1903, when he resigned.

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