The Epilepsy Society (ES), formerly known as The National Society for Epilepsy (NSE) is the largest medical charity in the field of epilepsy in the UK, providing services for people with epilepsy for over 100 years.

Based in Chalfont St Peter, Buckinghamshire, UK, its mission is "to enhance the quality of life of people affected by epilepsy by promoting research, education and public awareness and by delivering specialist medical care and support services." The ES has close partnerships with NHNN and the UCL Queen Square Institute of Neurology.

The purpose built Gowers Assessment Unit in Chalfont St Peter is a 26-bed facility which offers video-EEG telemetry, MRI, drug level  monitoring, neurology, neuropsychiatry and psychology, and admits 1000 patients per year from all over the UK and Ireland for in-depth multidisciplinary assessment and treatment.

Further information about ES and its work can be obtained from their website or via Dr Fergus Rugg-Gunn, who is clinical lead for the Gowers Centre