Woodah Island, also known as Isle Woodah, is an island in Arnhem Land, in the Northern Territory of Australia, lying in the mouth of Blue Mud Bay at 13°26′S 136°10′E / 13.44°S 136.16°ECoordinates: 13°26′S 136°10′E / 13.44°S 136.16°E. It is located 13.4 km east of Haddon Head on the coast of mainland Arnhem Land. It is 24 km long north-south, and up to 3.5 km wide. It is perhaps most famous as the site of some of the killings in the Caledon Bay crisis, which marked a turning point in the relationship between Indigenous and non-Indigenous Australians.
It is inhabited by members of the Durila clan from Groote Eylandt.