A turnstile is a pedestrian gate.
Turnstile may also refer to:
Turnstile (symbol), symbol used in mathematics, logic, and computer science Turnstiles (album), a 1976 studio album by Billy Joel Turnstile antenna, set of two dipole antennas Optical turnstile, physical security device TURNSTILE, a codename for the UK's Central Government War Headquarters Turnstile (band), a hardcore punk band The Turnstile, a 1912 novel by A. E. W. Mason in the fiction movie Tenet, a device that inverts entropy Turnstile, a CAPTCHA product by Cloudflare See also Turn Style, retail store Turnstyle (band), a band from Perth, Western Australia