Mae Olwen yn feddyg ymgynghorol sy'n siarad Cymraeg, sydd wedi gweithio ym maes Iechyd Rhywiol a meddygaeth HIV yng Ngogledd Cymru ers dros 30 mlynedd. Ar hyn o bryd mae ar secondiad i Addysg a Gwella Iechyd Cymru (AaGIC) fel Cyfarwyddwr Cyswllt Arweinyddiaeth Glinigol. Mae'n gadeirydd etholedig Academi y Colegau Brenhinol yng Nghymru.
Olwen is a Welsh speaking, Consultant physician who has worked in the field of Sexual Health and HIV medicine in North Wales for over 30 years. She is currently seconded to Health Education and Improvement Wales (HEIW) as Associate Director of Clinical Leadership. She is chair elect of the Academy of Royal Colleges in Wales.