Ashish Diwan (MBBS, MS, MNAMS, PhD, FRACS, FAOrthA) is the Director of Spine Service at the Department of Orthopaedic Surgery, St. George Hospital, University of New South Wales. He is also the Director of Bone Biology at the Orthopaedic Research Institute.  He is a clinical academic senior lecturer at the St George & Sutherland Clinical School.

Following his orthopaedic surgical training, he received training in advanced spinal surgery at the Hospital for Special Surgery (HSS) in New York City. He is now an International Ambassador for HSS.