Leftfield are a British electronic music group.

Leftfield or Left Field may also refer to: Left field, a position in baseball The Left Field, an event at a number of British music festivals Left Field Lounge, the area beyond the stadium fence at Mississippi State University Leftfield Magazine, the magazine of Scottish Socialist Youth Left Field Productions, a former American video game development studio

See also Out of left field, American slang for "out of nowhere", "unexpectedly", "strange"