Sir Vivian Ernest Fuchs FRS (/fʊks/ FUUKS; 11 February 1908 – 11 November 1999) was an English scientist-explorer and expedition organizer.

After graduation in 1930, he travelled with a Cambridge University expedition to study the geology of East African lakes with respect to climate fluctuation.

The findings from this expedition, in which two of their companions were lost, were summarised by Fuchs in his Cambridge University PhD, which has awarded 1937.

The Second Army was transferred to Portsmouth for the D-Day landings, and Fuchs eventually reached Germany in time to see the release of prisoners from the Belsen concentration camp.

He governed the Plön district in Schleswig-Holstein until October 1946, when he was discharged from military service with the rank of Major.

The institute's goal was to promote Britain's claims to Antarctica, and secondarily to support scientific research.

The next year, in 1991, he married Eleanor Honnywill, his former personal assistant at the British Antarctic Survey, in Kensington and Chelsea, London.

On 2 March 1958, Fuchs and company completed the 100-day trip by reaching Scott Base, having travelled 2,158 miles.