Warrant Officer 2nd Class H.B. Pasan Gunasekera (පසන් ගුණසේකර) PWV, WWV, RSP,GR (November 9, 1964 - November 29, 1995) was a non commissioned officer in the Sri Lanka Army who was posthumously promoted to the rank of Warrant Officer 2nd Class from Staff Sergeant, and awarded the Parama Weera Vibhushanaya (PWV) medal, the Sri Lanka's highest military decoration for the honor, for his heroic deeds in Jaffna, Sri Lanka during Operation Riviresa.

Pasan Gunasekera was born at Millewa, and was the youngest son of his family. After his father died in 1991, Gunasekera had worked for a while at local Ayurveda medicine factory and he met a retired Army officer working there and became very keen to join the Sri Lanka Army.

He joined the Army in 1985 and served mostly in the North. He had fought in several major operations such as Vadamarachchi, Haye Para, Balavegaya 1 and 2 and Wanni Wickremaya 1,2,3. Even he had been shot in the stomach at Vavuniya earlier and at that stage, his Commanding Officer had tried to transfer him to Colombo but Gunasekera required to get back to Jaffna.

In 1995, while he was on leave, he was urgently recalled to Jaffna. He had been ready to go on a course abroad but that too was cancelled because he was needed in Jaffna for the fore coming Operation Riviresa, which was his fate resolved.