Admiral Thisara Sugeeshwara Gunasekara Samarasinghe RSP, VSV, USP, ndc, psc, DISS, MNI, SLN (born: 16 July 1954) was the Commander of the Sri Lankan Navy from 15 July 2009 to 15 January 2011. He had a distinguished 36 year career in the Sri Lankan Navy. His career included a wide range of key appointments at sea and ashore, including training in the United Kingdom, India and the United States.