John Welch (October 28, 1805 – August 5, 1891) was an American lawyer, jurist, and politician who served one term as a U.S. Representative from Ohio from 1851 to 1853.

Born near New Athens, Ohio, Welch received a liberal schooling and graduated from Franklin College.

He was admitted to the bar and commenced practice in Athens, Ohio, in 1833.

Presidential elector for Republicans Fremont/Dayton in 1856[1] He served as judge of the court of common pleas 1862–1865.

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