The Kenya Police Service is the national police force and law enforcement agency of the Republic of Kenya. It is subordinate to the National Police Service which is headed by an Inspector General of Police who exercises independent command over the Service. Kenya Police is headed by Deputy Inspector General. Kenya Police is divided into Service Headquarters in Nairobi, Formations, General Duty Commands and Training Institutions.

The Administration Police is commanded through a hierarchy separate from that of the Kenya Police. For other state security bodies see Law enforcement in Kenya. Recruitment to the police service is done on yearly basis.

The Kenya police force was established as a British colonial police force in 1907. From the 1887 to 1902 policing was provided by the East Africa Trading Company. After 1902 the Kenya-Uganda Railway introduced their own police units.

In 1906 the Police Ordinance was established to create a new force in 1907, the Nairobi Mounted Police within the jurisdiction of the East Africa Protectorate. The current force's name came into effect in 1920 with the newly created British Kenya Colony.

The colonial force was made up mainly of British and Indian recruits as senior officers and Africans amongst lower ranks.

Following Kenya's independence, the British officers were replaced with local Kenyan members.

The Kenya Police is structured into two main categories: General Duty and Formations. General Duty includes various levels, with regions being the highest and police patrol bases being the most basic units.

Regional Police Commander is in charge of a Region (formerly Provinces), County Police Commander is in charge of Officers in the County(previously called District), Sub-County Police Commander Superintends Sub-County (previously called Division). Officer Commanding Station (OCS) is in charge of a Police Station in a Ward and oversees all its Police Posts and Patrol Bases (Ward Commander).