Cleveland Police is the territorial police force responsible for the policing area corresponding to the former county of Cleveland in Northern England. As of September 2017, the force had 1,274 police officers, 278 police staff, 124 police community support officers and 64 special constables. In the 2019 annual assessment by His Majesty's Inspectorate of Constabulary, Cleveland Police was rated 'inadequate' overall and rated 'inadequate' in all review areas, concluding that "crime prevention isn't a priority for the force and this is a cause of concern".

Cleveland was a non-metropolitan county located in North East England which existed between 1974 and 1996. Cleveland was a two-tier county and had four boroughs: Hartlepool, Stockton-on-Tees, Middlesbrough and Langbaurgh-on-Tees. The county town was Middlesbrough, where Cleveland County Council met. The county was named after the historic area of Cleveland, Yorkshire. Its area is now split between the counties of North Yorkshire and County Durham.