James Maina Boi

James Maina Boi (4 April 1954 – 15 July 2004) was a Kenyan middle-distance runner.

He is best known for winning the 800 metres distance at the 1978 All-Africa Games and a silver medal at the 1982 Commonwealth Games.

He also competed in the 4 x 400 metres relay at the 1983 World Championships with the Kenyan team that was eliminated in the semi-finals. He finished second behind Omer Khalifa in the 800 metres event at the British 1980 AAA Championships. Boi died in 2004 following long-term illness.