Loch an Iúir (Irish: lake of the yew), anglicised as Loughanure, is a village in the north-west of County Donegal, Ireland. It is halfway between Gweedore and Dungloe, on the N56 road, in the Gaeltacht area of the Rosses. The village owes its name to the native yew tree which grows wild on Oileán Iúir, a small island on the lake.