The Tokyo Metropolitan Police Department (TMPD) (警視庁, Keishichō),^[1] known locally as simply the Metropolitan Police Department (MPD),^[2] is the prefectural police of Tokyo Metropolis, Japan. Founded in 1874, the TMPD is the largest policeforce in Japan by number of officers, with a staff of more than 40,000 police officers and over 2,800 civilian personnel.

The TMPD is headed by a Superintendent-General, who is appointed by the National Public Safety Commission and approved by the Prime Minister. It manages 10 divisions and 102 stations across the Metropolis.^[3]

The TMPD's headquarters are located in Kasumigaseki, Chiyoda, Tokyo. Built in 1980, it is 18 stories tall, and is a large wedge-shaped building with a cylindrical tower. The HQ building is located opposite of Sakurada Gate, so it is also metonymically called "Sakurada Gate".^[