South London and Maudsley NHS Foundation Trust, also known as SLaM, is an NHS foundation trust based in London, England, which specialises in mental health. It comprises four psychiatric hospitals (Bethlem Royal Hospital, Lambeth Hospital and the Maudsley Hospital), the Ladywell Unit based at University Hospital Lewisham, and over 100 community sites and 300 clinical teams. SLaM forms part of the institutions that make up King's Health Partners, an academic health science centre.