Standoff weapons (or stand-off weapons) are missiles or bombs which may be launched from a distance sufficient to allow attacking personnel to evade the effect of the weapon or defensive fire from the target area. Typically, they are used against land- and sea-based targets in an offensive operation. The name is derived from their ability to engage the target while standing off outside the range at which the defenders are likely to engage the attacker. Typical stand-off weapons include cruise missiles, glide bombs and short-range ballistic missiles.

Standoff missiles belong to the larger class of ranged weapons and are complemented by the Stand-in Attack Weapon (SiAW), a missile with a shorter range that is fired by an aircraft after penetrating enemy airspace.