Dame Ellen Patricia MacArthur (born 8 July 1976) is a retired English sailor, from Whatstandwell near Matlock in Derbyshire, now based in Cowes, Isle of Wight.
MacArthur is a successful solo long-distance yachtswoman. On 7 February 2005 she broke the world record for the fastest solo circumnavigation of the globe, a feat which gained her international renown. Francis Joyon, the Frenchman who had held the record before MacArthur, was able to recover the record again in early 2008.Following her retirement from professional sailing on 2 September 2010, MacArthur announced the launch of the Ellen MacArthur Foundation, a charity that works with business and education to accelerate the transition to a circular economy.

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