Mark Stephen Bill Cooksley (born 11 April 1971 in Auckland, New Zealand) is a former professional rugby union player and All Black lock. Cooksley was the tallest All Black ever at 2.05 metres and 125 kg, until this was surpassed by Dominic Bird (2.08 metres), who made his test debut for the All Blacks in 2013. He had a long All Black career, spanning from 1992 until 2001. Despite this, Cooksley only played in 23 All Black matches, and only 11 All Black tests. This could be attributed to many injuries he sustained during his career, as well as Robin Brooke and Ian Jones often being the favoured locking pair during this time.