Prof Wee Loon Ong, BMedSc, MBBS, MPhil, FRANZCR, is a Radiation Oncologist subspecialising in prostate cancer care at the Alfred Health, Latrobe Regional Health and Barwon Health. He is an Adjunct Clinical Professor at Monash University School of Translational Medicine. He completed a prostate fellowship at Sunnybrook Health Sciences Centre, University of Toronto and is highly trained in all aspects of prostate radiation therapy including brachytherapy and stereotactic ablative body radiation therapy (SABR). He is currently the Prostate SABR lead at the Alfred Health, Latrobe Regional Health and Barwon Health, and co-leads multiple phase 2 prostate SABR trials at the Alfred Health. He is the current Chair of the Trans-Tasman Radiation Oncology (TROG) Genitourinary Working Party, and the Australian Principal Investigator for the NRG-Oncology GU013/ HIGH-FIVE trial, funded by the MRFF ICTC grant. He is an executive committee member of the RANZCR Faculty of Radiation Oncology Genitourinary Group (FROGG) and led the development of the RANZCR bi-national prostate SABR guideline.