Sir Maurice Hearne Byers (10 November 191717 January 1999) was a noted Australian jurist and constitutional expert. He was the Commonwealth Solicitor-General from 1973 to 1983, in which capacity he played a role in the Gair Affair and the 1975 Australian constitutional crisis. He had an unmatched record of success in his appearances before the High Court of Australia, and he has been characterised as the finest lawyer never to have been appointed to the High Court.