William Koech
William Koech is a retired Kenyan long-distance runner who specialized in the 10,000 metres.
In 1991 he won a silver medal in the 10,000 metres at the All-Africa Games held in Cairo. He finished seventh in the same distance at the 1992 Summer Olympics – Men's [10,000">Athletics at the 1992 Summer Olympics – Men's 10,000 metres">1992 Summer Olympics – Men's [10,000 metres|1992 Summer Olympics].