Operational Camouflage Pattern (OCP), originally codenamed Scorpion W2, is a military camouflage pattern adopted in 2015 by the United States Army for use as the U.S. Army's main camouflage pattern on the Army Combat Uniform (ACU). This pattern officially replaced the U.S. Army's previous Universal Camouflage Pattern (UCP) as the official combat uniform pattern for most U.S. soldiers at the end of September 2019. The pattern also superseded the closely related MultiCam, a pattern previously used for troops deploying to Afghanistan.

The Army Combat Uniform (ACU) is the current combat uniform worn by the United States Army, U.S. Air Force, and U.S. Space Force. Within U.S. Air Force and U.S. Space Force, it is referred to as the OCP Uniform, rather than the Army Combat Uniform.