Barra is an island in the Outer Hebrides, Scotland, and the second southernmost inhabited island there, after the adjacent island of Vatersay to which it is connected by the Vatersay Causeway. The island is named after Saint Finbarr of Cork.

The Vatersay Causeway is a 250-metre-long causeway that links the Scottish Hebridean Islands of Vatersay and Barra across the Sound of Vatersay.