Professor Ralph Cohen is a Senior Staff Specialist at the Children’s Hospital at Westmead and Clinical Professor in Paediatric Surgery and Urology at Sydney University. He is a Visiting Medical Officer at Sydney Adventist Hospital campus.

Professor Cohen was past Head of the Department of Surgery at the Children’s Hospital Westmead. He also trained overseas in The Hospital for Sick Children, Great Ormond Street London UK, and The Hospital for Sick Children in Toronto as a Clinical Research Fellow in Surgery.  He obtained his Master of Surgery Degree based on his research in Toronto, Canada. 

Professor Cohen's main clinical interests are in General Paediatric Surgery and Urology with a special interest in laparoscopy. In particular, the treatment of congenital renal abnormalities, including pelviureteric junction (PUJ) obstruction, duplex kidneys, undescended testes and inguinal hernia and hydrocele.