Duff Point is a point on Archar Peninsula forming the western extremity of Greenwich Island, in the South Shetland Islands, Antarctica. The name Duffs Straits was applied to McFarlane Strait by James Weddell in 1820–23, after Captain Norwich Duff under whom Weddell served in HMS Espoir in 1814. The name Duff Point was given by the UK Antarctic Place-Names Committee in 1961 in order to preserve Weddell's name in the area; this point forms the northeast entrance to McFarlane Strait.[1]