Eoil na Máirbhdhine (Rockallian for: Dead Man's Island) (pronunciation: [ˈœl nəˈma:rwi:nʲə]) is a small island and National Landscape off the coast of the island of Rockall in the Seafaring Confederation and the smallest and westernmost of the islands of An Oilíana hÓ Dhéase in the viscountcy of An Uinnia. Due to its incorrect placement on mediaeval maps it is often thought of as the southernmost island of the Rockallic archipelago, however, this is incorrect. The actual southernmost island is Tóinn Dhúibh.