Cydnor Bailey Tompkins (November 8, 1810 – July 23, 1862) was an American lawyer and politician who served two terms as a U.S. Representative from Ohio from 1857 to 1861.

He completed preparatory studies, and was graduated from the Ohio University at Athens in 1835.

[1] Tompkins was admitted to the bar in 1837 and commenced practice in McConnelsville, Morgan County, Ohio.

Tompkins resumed the practice of law and died in McConnelsville, Ohio, July 23, 1862.

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