An anti-tank missile (ATM), anti-tank guided missile (ATGM), anti-tank guided weapon (ATGW) or anti-armor guided weapon is a guided missile primarily designed to hit and destroy heavily-armored military vehicles.
ATGMs range in size from shoulder-launched weapons which can be transported by a single soldier, to larger tripod-mounted weapons which require a squad or team to transport and fire, to vehicle and aircraft mounted missile systems.