Kenneth Lee Hamlin (born May 18, 1935) is an American former Major League Baseball shortstop /second baseman.

He was signed by the Pittsburgh Pirates as an amateur free agent on June 3, 1957, and played for the Pirates (1957, 1959), Kansas City Athletics (1960), Los Angeles Angels (1961), and Washington Senators (1962, 1965–66).

He made his big league debut for the Pirates two weeks after he signed with them, but only played in five games for them in his two short stays there.

He was traded to the Kansas City A's as part of a multi-player deal that headlined pitcher Dick Hall and catcher–third baseman Hal Smith on December 9, 1959.

Career highlights include: In his retirement years, Hamlin founded and ran Tall Timbers, a sports camp with a baseball emphasis, in Climax, Michigan.