Professor Penny Webb is recognised nationally and internationally for her work and global leadership in the epidemiology of ovarian and endometrial cancer. She is on the Steering Committee of the international Ovarian Cancer Association Consortium (OCAC) and a senior member (past Chair) of the OCAC Epidemiology Working Group. She is lead author of an epidemiology textbook now in its 4th Edition (2020) that has sold >35,000 copies worldwide. Previously, she conducted seminal research into the role of Helicobacter pylori in gastric cancer.

Professor Webb was awarded Life Membership of the Australasian Epidemiological Association (2019) in recognition of her contributions to the field.