William Henry Wadsworth (July 4, 1821 – April 2, 1893) was a U.S. Representative from Kentucky. Born in Maysville, Kentucky, Wadsworth attended town and county private schools.He studied law and graduated from Augusta College, Bracken County, Kentucky, in 1841.He was admitted to the bar in 1844 and commenced practice in Maysville, Kentucky.He served as member of the Kentucky State Senate from 1853 to 1856.He served as presidential elector on the Constitutional Union ticket in 1860.