Sector 3, Sector III or variants may refer to: Municipal sectors Sector 3 (Bucharest), an administrative sector of Bucharest, Romania A sector of Rohini Sub City, India A sector of Vashi, India Sector III, a neighbourhood in Getafe, Spain Military sectors A sector of the United Nations Mission in Liberia A defence sector of the Bangladesh Armed Forces Air traffic sectors Part of a holding pattern A sector of Anchorage Air Route Traffic Control Center coverage area A sector of London Area Control Centre coverage area Other uses "Sector 3", a 1996 single by Ed Rush Sector3 Studios, a Swedish video game developer See also Sector (disambiguation) Third sector (disambiguation)