Heshan Bandara Unamboowe (born 19 May 1992) is a Sri Lankan swimmer who has represented his country at international competitions. He was born in the town of Kandy to parents Dudley and Priyanga. He received his primary and secondary education at Trinity College, Kandy. He started schooling in Dharmaraja College, Kandy and joined Trinity College in Grade 2. Unamboowe competed in the Men's 100m backstroke event at the 2012 Summer Olympics. He ranked 42nd and did not advance to the semifinals. He currently competes for Miami University in Ohio