Lester Sill (January 13, 1918 – October 31, 1994) was an American record label executive, best remembered as Phil Spector's partner in Philles Records (the name came from the first parts of their names, Phil and Les), and also as the head of both Colpix Records and the later Colgems Records. His three sons are music supervisors in the film and TV businesses: Joel Sill, Greg Sill and Lonnie Sill. His stepson Chuck Kaye is a longtime music publishing executive.