Bahman Nassim (February, 1940 – January 28, 1980) was an Iranian record holder for the backstroke, as well as playing for the Iran men's water polo team between the years of 1958–1965. Bahman is known for his influence and early development of competitive swimming and water polo within Iran during the early 1960s, which ultimately led to successful teams in the 1970s. He also served as the Chief of Police for the city of Semnan, Iran, where he was arrested after the overthrow of the Shah, under charges of "Murder of persons and/or killing Muslims or/and freedom fighters". Bahman Nassim was executed by firing squad at dawn on January 28, 1980, at Evin Prison, Tehran, Iran. He is survived by his wife and two daughters, who currently reside in Iran.