The Penguin anti-ship missile made by Kongsberg Defence & Aerospace (KDA) of Norway from the early 1970s and continually upgraded since, is a passive-IR seeker based short-to-medium range naval cruise missile. It is designated the AGM-119 in US service.

It was the first Anti-ship missile of the western world with an IR seeker (as opposed to the more commonly used active radar technology).The Penguin can be fired singly or in coordinated-arrival salvoes.

Propelled by a solid rocket engine, it performs random weaving manoeuvres at target approach and hits the target close to the waterline. Of the western inventory of such missiles, it is the only variant that performs a terminal bunt and weave manoeuvre. The modified 120 kg Bullpup warhead detonates inside the target (ship) by using a delay fuse.

In its various versions, the Penguin can be launched from a number of different weapons platforms:

• Surface vessels

• Fighter aircraft: certified for F-16

• Helicopters (certified for the following aircraft):
  Bell 412 SP
  Kaman SH-2 Seasprite
  Sikorsky S-70 series (SH-60 Seahawk, UH-60 Black Hawk)
  Westland Super Lynx

KDA's successor to the Penguin will be the Naval Strike Missile (NSM). NSM will feature an imaging IR-seeker, GPS navigation, a turbojet sustainer engine (for much longer ranges: 150+km), and significantly more computer performance and digital signal processing power.