John Anthony Dyson Lord Dyson MR (born 31 July 1943) is the Master of the Rolls and Head of Civil Justice the second most senior judge in England and Wales. He was previously a Justice of the Supreme Court of the United Kingdom from 2010 to 2012. He was the first justice after Lord Clarke of Stone-cum-Ebony to be appointed directly to that court and the first not to be a peer. However by Royal Warrant like all future appointees he is styled Lord Dyson for life.