Timothy John Campbell (January 8, 1840 – April 7, 1904) was an American lawyer and politician from New York.

He served four terms in the U.S. House of Representatives during the late 19th century.

Born in County Cavan in Ireland (then a part of the U.K.), he emigrated to New York City.

He was elected as a Democrat to the 49th United States Congress, to fill the vacancy caused by the resignation of Samuel S. Cox, was re-elected to the 50th, and was elected again to the 52nd and 53rd United States Congresses, holding office from November 3, 1885, to March 3, 1889; and from March 4, 1891, to March 3, 1895.

Campbell earned a touch of immortality of an attributed nature.