Lieutenant Colonel Justice John Harris Byrne, AO, RFD, QC (born 16 October 1948) was the Senior Judge Administrator of the Supreme Court of Queensland. Having been a judge of that court since 1989, he was one of the court's most experienced judges. He was also Chair of the National Judicial College of Australia, a body which provides programs and professional development resources to judicial officers in Australia. He is now a private Commercial Arbitrator.