He succeeds the late Marion Teresa Brewis CVO, who retired in September 2014.
John Ross is a senior partner in his family’s farming business. A former president of the National Farmers’ Untion of Scotland, he has also served as a director of Quality Meat Scotland, Moredun Research Institute, and the NFU Mutual Insurance Society.
He has also served as chairman of Scotch Quality Beef and Lamb Association, Dumfries and Galloway Health Board, Moredun Research Institute, NHS Dumfries and Galloway, and the Moredun Foundation.
He was awarded the CBE in 1994.
He was appointed a Deputy Lieutenant in 2009 and Vice Lord Lieutenant in 2014.