ETW

ETW may refer to:
 * East to West, an American Contemporary Christian music duo active 1993–1997
 * Eastern Trombone Workshop, one of the largest annual events for trombone in the world, held at Brucker Hall in Fort Myer, Virginia
 * Empire: Total War, a strategy game by Creative Assembly
 * End Time Warriors, an American Christian rap group active 1989–1997
 * E.T.W. (album), a 1989 album by End Time Warriors
 * The European Transonic Wind Tunnel, a high-Reynolds-number transonic wind tunnel using nitrogen as test gas
 * Event Tracing for Windows, a software analysis tool