Tharcisse Gashaka (born 18 December 1962) is a Burundian athlete who specialized in marathon and long-distance running.
Gashaka competed in the marathon for Burundi in their country's first Olympics at the 1996 Summer Olympics in Atlanta, where he finished 90th, with a time of 2:32:55.[1] In 1997, Gashaka won a silver medal at the Athletics at the 1997 Jeux de la Francophonie in the 10,000 metres.[2]