Jack Leslie Clark (November 25, 1925 – July 21, 1988) was an American television personality, game show host, and announcer.

Clark later went on to announce for several other game shows, including Split Second (1972–1975), Tattletales (1974), Three for the Money (1975), Second Chance (1977), and some Hollywood-originated episodes of The $10,000 Pyramid.

Clark also announced for other television programs in the 1980s, including The $25,000 Pyramid (1982–1985), as well as being a spokesman for National Geographic magazine, appearing on-camera in their commercials.

During that time, hosts Pat Sajak and Vanna White announced the fee plugs on the syndicated version.

Clark died on July 21, 1988, at the age of 62, just before production of the 1988–1989 season was to begin, and is interred at Glendale's Forest Lawn Memorial Park.