Tic-Tac-Dough is an American television game show based on the paper-and-pencil game of tic-tac-toe. Contestants answer questions in various categories to put up their respective symbol, X or O, on the board. Three versions were produced: the initial 1956–59 run on NBC, a 1978–86 run initially on CBS and then in syndication, and a syndicated run in 1990. The show was produced by Barry & Enright Productions.

A game show is a genre of broadcast viewing entertainment where contestants compete for rewards. The shows are typically directed by a host, who explains the rules of the game as well as commentating and narrating where necessary. The history of the game shows dates back to the late 1930s when both radio and television game shows were broadcast. The genre became popular in the United States in the 1950s, becoming a regular feature of daytime television.