Sir Mark Ellis Powell Jones FSA FRSE (born 5 February 1951) is a British art historian, numismatist and museum director.

[4] Jones spent 18 years in the Department of Coins and Medals at the British Museum, where he curated the exhibition FAKE?

[7] Under his directorship, a number of renewal projects have been completed, including the Medieval and Renaissance galleries which opened in 2009.

[8] On 18 November 2010, it was announced that Jones had been elected as the next master of St Cross College, Oxford; he took up the post in September 2011.

[citation needed] He is married to Camilla Toulmin, the former director of the International Institute for Environment and Development.