Brian Thompson, born on 5 March 1962, is a British offshore sailor. He made his name in 1992 by winning Class V of the OSTAR (the English Transat) aboard his own trimaran Transient, setting a crossing record for his category.
He went on to sail extensively on multihulls, notably with American Steve Fossett, with whom he took part in the 2004 round-the-world sailing record. In 2005 he won the crewed round-the-world Oryx Quest on Doha 2006 (ex-Club Med). In 2006 he won the Volvo Ocean Race in Mike Sanderson's crew on ABN AMRO One, and the same year finished sixth in the Route du Rhum in the IMOCA class.
He took fifth place in the 2008-2009 Vendée Globe aboard the IMOCA Bahrain Team Pindar. In January 2012 he was helmsman and trimmer for Loïck Peyron on the maxi-trimaran Banque Populaire V, which won the Jules Verne Trophy in 45 days 13 hours 42 minutes; he became the first Briton to complete four non-stop circumnavigations.
In 2013 he joined MGI as sailing director and co-skippered the Class40 Caterham Challenge with Mike Gascoyne in the Transat Jacques Vabre.