Barnet, Enfield and Haringey Mental Health NHS Trust

Barnet, Enfield and Haringey Mental Health NHS Trust (BEH) was a large provider of integrated mental health and community health services in North London, providing services across Barnet, Enfield, and Haringey. The trust employed around 3,000 staff and served a population of just over a million. The annual income in 2017-18 was c. £210 million.

The Trust provided specialist mental health services to people living in the London boroughs of Barnet, Enfield and Haringey, and a range of more specialist mental health services to a larger area. These included the North London Forensic Service at Chase Farm Hospital, Eating Disorder Service at St Ann's Hospital, specialist child and adolescent inpatient services at Edgware Community Hospital, and the Halliwick Centre for personality disorders. The organisation also hostsed the National Fixated Threat Assessment Centre, which provides a service for high-profile public figures receiving excessive attention from people. It took over Enfield community services in the Transforming Community Services programme in 2010.

On 1 November 2024, the Trust merged with Camden and Islington NHS Foundation Trust to form North London NHS Foundation Trust.

It sold an 11.24-hectare (27.8-acre) site at St Ann's Hospital in Haringey to Sadiq Khan's Land Fund in May 2018 for £53 million. It will be used for 800 homes.