The Honolulu Police Department (HPD) is the principal law enforcement agency of the City and County of Honolulu.

Founded in 1932, the police department serves the entire island of O’ahu, covering over 600 square miles (1,600 km²) of territory, with just over 900,000 residents(not including military members) and over four million annual visitors. The island is divided into 8 patrol districts which are then subdivided into sectors and beats. The HPD currently has more than 2,500 employees, 2,134 of which are full-time sworn officers. A 2003 Department of Justice report listed The HPD as the 21st largest police department in the nation.

Unlike the other 49 states, Hawai’i does not have a state police agency or individual city agencies; law enforcement is the jurisdiction of the individual county governments. The HPD is nationally accredited by the Commission on Accreditation for Law Enforcement Agencies (CALEA)