Michael Green is a retired Jamaican sprinter who specialized in the 100 metres. Michael Green was born in Trelawny. He attended William Knibb Memorial High and graduated in May 1989 where he dominated the 100m. Green's nickname at William Knibb was 'Roach'. After graduating from William Knibb as the fastest male in 1989, Green was awarded a scholarship to attend Clemson University. Michael Green and 100m World Record setting sprinter Usain Bolt are former students at William Knibb Memorial High School.