John Herman Dent (March 10, 1908 – April 9, 1988) was an American politician who served as a Democratic member of the U.S. House of Representatives from Pennsylvania.

He was educated in the public schools of Armstrong and Westmoreland counties, the Naval Station Great Lakes, and through correspondence school courses.

He operated the Kelden Coal & Coke Co. of Hunker, and the Building & Transportation Co. of Trafford, and Jeannette.

He served in the United States Marine Air Corps from 1924 to 1928.

He was elected in 1958 as a Democrat to the 85th United States Congress, by special election, January 21, 1958, to fill the vacancy caused by the death of Augustine Kelley, and was reelected to the ten succeeding Congresses.