ALARM (Air Launched Anti-Radiation Missile) is a British anti-radiation missile designed primarily to destroy enemy radars for the purpose of Suppression of Enemy Air Defenses (SEAD).

[4] Defence Secretary Michael Heseltine announced the selection of ALARM on 29 July 1983.

[4][6] In early 1986, BAe recognised that Royal Ordnance was having difficulties delivering the missile's motor, named Nuthatch, and began to consider alternatives.

[9] The radar seeker was made by Marconi Space and Defence Systems (GEC) at Stanmore.

In loiter mode, ALARM will, when launched, climb to an altitude of 13,000 metres (43,000 ft).