Mark Blackett (born 3 February 1964) is a former English cricketer. Blackett was a right-handed batsman. He was born at Edmonton, Middlesex.
Having previously played second eleven cricket for Middlesex without breaking into the starting eleven, Blackett later made his first-class debut for Leicestershire against Nottinghamshire at Trent Bridge in the 1985 County Championship, with him making a second first-class appearance in that season's County Championship against Worcestershire at Grace Road. He scored 41 runs in these two matches, with a high score of 28 not out. He made his debut in List A cricket in that same season against Glamorgan in the John Player Special League. He made five further List A appearances for the county, the last of which came against Somerset in the 1986 John Player Special League. In his six matches in that format, he scored 53 runs with a high score of 21 not out.