Sir Robert Maurice Jay (born 20 September 1959), styled The Hon. Mr Justice Jay, is a judge of the High Court of Justice of the Courts of England and Wales. He was counsel to the Leveson Inquiry into phone-hacking and media ethics, where he first came to wide public attention during the Inquiry's televising and extensive media reporting. On 4 June 2013, he was appointed a High Court judge, receiving the customary knighthood in the 2013 Special Honours, and assigned to the Queen's Bench Division.