Henry John R Cookson, FRGS (born 16 September 1975) is a British polar explorer and adventurer. On 19 January 2007 he, alongside fellow Britons Rory Sweet and Rupert Longsdon, and their Canadian polar guide Paul Landry, became the first team to reach the southern pole of Inaccessibility (POI) by foot, the last visitors being a research team using tracked vehicles & planes in 1965.