Bickerton Island is 13 km west of Groote Eylandt and 8 km east of the mouth of Blue Mud Bay in eastern Arnhem Land, in the Northern Territory of Australia. It is about 21 by 21 kilometres in size, with deep bays and indentations, and has an area of 215 km2. The largest bays are South Bay and North Bay. Bickerton Island was named by Matthew Flinders for Admiral Sir Richard Bickerton, Bt. Bickerton Island is privately owned Aboriginal land. The landowners are represented by the Anindiyakwa Land Council in Angurugu on Groote Eylandt.