A lifeguard is an emergency service worker.
Lifeguard or Life Guard may also refer to:
Entertainment
Lifeguard (film), a 1976 film starring Sam Elliott and Anne Archer
The Lifeguard, a 2013 film starring Kristen Bell and David Lambert
The Lifeguard (1980 film), a Soviet romantic drama film
Lifeguard! Southern California, an American reality television series
Lifeguard, a book by James Patterson
The Lifeguard (novel), a 1988 novel by Richie Tankersley Cusick
"Lifeguard", a short story in the collection Pigeon Feathers and Other Stories by John Updike
Lifeguard (character), an X-Men character
Military
Life guard, a military elite or bodyguard unit in European countries
Life Guards (United Kingdom), a British Army regiment
Life Guards (Sweden), a Swedish Army regiment
Royal Bavarian Life Guards, a Bavarian Army regiment
Royal Life Guards (Denmark), a Danish Army regiment
Washington's Life Guard, a short-lived Continental Army infantry and cavalry unit (1776–1783)
Life Guards (France)
Life Guards of Horse
Life Guard Horse Regiment
Life Guards Jager Regiment (Russia)
Other
Lifeguard (automobile safety), a 1956 safety package marketed by the Ford Motor Company
Lifeguard (rail transport), a metal bracket placed ahead of a locomotive's wheels to deflect obstacles
Life Guards' Dragoon Music Corps
Life Guard DC