Amanda Feilding, Countess of Wemyss and March, is an English drug policy reformer. In 1998, she founded the Beckley Foundation, a charitable trust that promotes a rational, evidence-based approach to global drug policies and initiates, directs and supports pioneering neuroscientific and clinical research into the effects of psychoactive substances on the brain and cognition. The central aim of her research is to investigate new avenues of treatment for such mental illnesses as depression, anxiety and addiction, as well as to explore methods of enhancing well-being and creativity.