James Irvine Dungan (May 29, 1844 – December 28, 1931) was an American lawyer and politician who served as a U.S. Representative from Ohio for one term from 1891 to 1893.

Born in Canonsburg, Washington County, Pennsylvania, Dungan attended the common schools.

During the Civil War served as color sergeant in the Nineteenth Regiment, Iowa Volunteer Infantry.

He engaged in the practice of his profession until his death in Jackson, Ohio, on December 28, 1931.

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