Disruptive Pattern Material (DPM) is the commonly used name of a camouflage pattern used by the British Armed Forces as well as many other armed forces worldwide, particularly in former British colonies.

The main variants of DPM are a four-colour woodland pattern, and desert patterns in two, three or four colours. The Woodland Pattern DPM was used with the mediumweight No.8 Temperate Combat Dress (c.1966/1968) and lightweight No.9 Tropical Combat Dress (c.1976). The later Desert Pattern DPM (c.late 1980s) was designated the No.5 Desert Combat Dress.

DPM has also been produced in black/white/grey Urban DPM, in various blue tones and even in purple.

DPM has been phased out in British military service, superseded by Multi-Terrain Pattern.

The British Army first used a form of DPM for the famous Denison smock issued to the Parachute Regiment and British Commandos from the early 1940s. The first examples of this design were said to be hand-painted. The Denison smock design went through minor changes, and continued in use with the Royal Marines and the Parachute Regiment until the 1970s.

From 1960, the British Army was issued with the 1960 Pattern field-uniform consisting of a Combat Smock, Combat Trousers, a Combat Hood attached to the smock by two epaulette buttons and a third button concealed under the collar, and, for exceptionally cold conditions, a Parka.

A new British DPM was developed in the early 1960s, using the four basic western European temperate colours of black, dark brown, mid-green and a dark sand to make a very effective camouflage that has survived in its basic design, with no more than slight changes to the colours and pattern, until current times.

This design was probably used first on a very small scale for a hooded Smock, Windproof, 1963 Pattern, issued only to special forces^{[citation needed]}.