The City of London Police is the territorial police force responsible for law enforcement within the City of London, including the Middle and Inner Temples. The force responsible for law enforcement within the remainder of the London region, outside the city, is the much larger Metropolitan Police, a separate organisation. The City of London, which is now primarily a financial business district with a small resident population but a large commuting workforce, is the historic core of London, and has an administrative history distinct from that of the rest of the metropolis, of which its separate police force is one manifestation.

The City of London area has a resident population of around 8,700, however there is also a daily influx of approximately 513,000 commuters into the city, along with thousands of tourists.

The police authority is the Common Council of the City and, unlike other territorial forces in England and Wales, there is not a police and crime commissioner replacing that police authority by way of the Police Reform and Social Responsibility Act 2011, but like a police and crime commissioner, the Common Council is elected.

As of 2021, the force had a workforce of 1,355 including 861 full-time police officers and 494 support staff. The force is also supported by much smaller numbers of special constables, police community support officers, and designated officers. The headquarters is located at the Guildhall and there is an additional station at Bishopsgate. The City of London Police is the smallest territorial police force in England and Wales, both in terms of geographic area and head-count. The current commissioner (equivalent to the chief constable in non-London forces), appointed in 2022, is Angela McLaren.