The Wessel Islands is a group of uninhabited islands in the Northern Territory of Australia. They extend in a more or less straight line from Buckingham Bay and the Napier Peninsula of Arnhem Land, and Elcho Island, to the northeast. Marchinbar Island is the largest of the group. Other islands include Elcho Island, Rimbija Island (the most outlying island), Guluwuru, Raragala, Stevens Island, Burgunngura, Djeergaree, Yargara, Drysdale Island, Jirrgari Island, Graham Island, Alger Island, Abbott Island, and Howard Island.
Bumaga Island and Warnawi Island, both part of the Wessel Islands group, are also part of the Cunningham Islands.