John Kerr Hendrick (October 10, 1849 – June 20, 1921) was a U.S. Representative from Kentucky. Born in Caswell County, North Carolina, Hendrick moved with his parents to Logan County and later to Todd County, Kentucky, attended private schools and Bethel College, Russellville, Kentucky, moved to Crittenden County, Kentucky, in 1869 and engaged in teaching school. He studied law and was admitted to the bar in 1874, commencing practice in Smithland, Kentucky. He served as prosecuting attorney of Livingston County from 1878 to 1886, and as member of the Kentucky State Senate from 1887 to 1891. During that time, he served as delegate to the 1888 Democratic National Convention.