William Robert Warnock (August 29, 1838 – July 30, 1918) was an American lawyer, politician, and veteran of the Civil War who served two terms as a U.S. Representative from Ohio from 1901 to 1905.

Warnock then resumed the study of law and was admitted to the bar in 1866 and commenced practice in Urbana.

Warnock then held a position as the Commander of the department of Ohio, Grand Army of the Republic, in 1913 and 1914.

Warnock died in Urbana, Ohio, July 30, 1918 and was interred in Oakdale Cemetery.

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