EP may refer to: European Parliament, the European Union's lower house Extended Play, audio or video format ("EP"'s also used as an abbreviation for "EP disk") El Paso, Texas, a large city in Texas, United States Eden Prairie, a suburb of Minneapolis, Minnesota, US En passant (e.p.), a chess maneuver An electric locomotive (Polish train designation: EP) EP additive, a lubricant additive (mainly used in automotive gear oils) Government, military and politics English Partnerships, the form… (More on Ep)