Adrian Paul Grayson (born 31 March 1971) is an English former cricketer who played first-class cricket for Yorkshire and Essex. Following his playing retirement he served as Essex's head coach from 2007 to 2015. Grayson retired from first-class cricket at the end of the 2005 season, having scored 8,655 runs at 31.70, and taken 136 wickets at 44.39. Grayson left Essex by mutual consent in August 2015. On 30 September 2015 it was announced he would be joining Durham MCC University as their new coach. He is the brother of the former professional footballer and manager, Simon Grayson.