Juma Ndiwa (born 28 November 1960) is a Kenyan former middle-distance runner specialising in the 800 metres.[2] He represented his country at the 1984 and 1988 Summer Olympics as well as the 1983 World Championships. He won the gold at the 1982 African Championships and a bronze at the 1985 edition.
His personal best in the event is 1:44.20 set in Munich in 1983.