Dr Preethi Dissanayake, MBBS, MD, is an Acting Consultant Endocrinologist attached to the Base Hospital, Homagama.

She was a Senior Registrar in Endocrinology attached to the National Hospital of Sri Lanka.

She graduated from the Faculty of Medicine, University of Colombo, in 2014 with an overall achievement of first-class honours. She obtained her MD in Medicine from the Post Graduate Institute of Medicine, University of Colombo in 2021, winning the Dr John F.Stokes Gold Medal for Medicine and the Dr Nanda Amarasekara award for the best performance in MD Medicine from Ceylon College of Physicians. She entered the speciality training in Endocrinology.

Her research interests are diabetes, adrenal disorders, and acromegaly.