Harold Kile Claypool (June 2, 1886 - August 2, 1958) was a U.S. Representative from Ohio, son of Horatio Clifford Claypool and cousin of John Barney Peterson.
Born in Bainbridge, Ross County, Ohio, Claypool attended the public schools and Ohio State University at Columbus. He engaged in the publishing business at Columbus, Ohio, and published Hunter and Trader Magazine. Deputy probate judge of Ross County, Ohio.
Claypool was elected as a Democrat to the Seventy-fifth, Seventy-sixth, and Seventy-seventh Congresses (January 3, 1937-January 3, 1943). He was an unsuccessful candidate for reelection in 1942 to the Seventy-eighth Congress. He resumed the publishing and office supply business. United States marshal for the southern district of Ohio 1944-1953. He died in Chillicothe, Ohio, August 2, 1958. He was interred in Grandview Cemetery, Chillicothe, Ross County, Ohio, USA.