The Westmead Institute for Medical Research is a large medical research institute located at Westmead in the western suburbs of Sydney, Australia. The institute is closely affiliated with Sydney Medical School and Westmead Hospital and comprises approximately 450 medical research and support staff. Originally named the Westmead Millennium Institute for Medical Research, the institute was founded in 1996 through the merging of five research groups at the Westmead health campus, initially comprising just 40 medical researchers, and was renamed on 18 November 2015. The Westmead Institute has grown rapidly on the basis of peer-reviewed funding.