The 18th Military Police Brigade is a military police brigade of the United States Army based in Vilseck, Germany, with subordinate battalions and companies stationed throughout Germany. It provides law enforcement and force protection duties to United States Army Europe.

Activated during the Vietnam War, the Brigade oversaw all Military Police operations in the country for a large portion of the conflict, undertaking a wide variety of missions throughout the country and providing command and control for other military police groups in the region. After Vietnam, the Brigade deployed units to several other operations, namely Operation Desert Storm and Operation Provide Comfort. The brigade itself also deployed to Kosovo, supporting many of the units operating there attempting to settle unrest in the area due to the 1999 Bosnian War.

The brigade has also seen multiple deployments in the Global War on Terrorism to the Iraq War. Its primary responsibilities have been to train and equip the national Iraqi Police forces.