Four square is a ball game. Four square may also refer to: Internet and entertainment Foursquare City Guide, a local search and discovery app 4 Square (game show), a British game show 4 Square (TV series), a Canadian children's show 4 Square (pinball), a pinball machine Handball (school), an Australian ball game Organizations Foursquare (company), a technology company and the developer of Foursquare City Guide Four Square supermarkets Four Square Laundry, a front company for a British Army intelligence unit in 1970s Belfast Foursquare_Church Other uses Four Square (Smithfield, Virginia), U.S., a historic home and farm Four square writing method American Foursquare, an architectural style Four Square (cigarette) See also Russian four square Four-square cipher Lagrange's four-square theorem, any natural number equals the sum of four integers squared Jacobi's four-square theorem giving the number of distinct ways an integer can be represented as the sum of four squares Euler's four-square identity or theorem, the product of two numbers, each of which is a sum of four squares, is itself a sum of four squares. Ariel Square Four, a motorcycle