Jack Clark (born November 25, 1925, in St. Joseph, MO; died July 21, 1988, in Los Angeles, CA) was a game show host and announcer, best known for hosting The Cross-Wits and announcing on Wheel of Fortune. He attended the University of California at Berkeley, where he graduated. During his time at UC Berkeley, he was a substitute announcer on AM radio station KROW.

In 1988, he was diagnosed with bone cancer. On July 21, 1988, Jack passed away at the age of 62. Pat Sajak eulogized Jack at the beginning of the 1988-89 season of Wheel. Before his death, Jack requested that Charlie O'Donnell (the man whom he replaced in 1980) replace him. However, Charlie was unavailable at the time; M.G. Kelly announced until Charlie became available.