Loch Bà is a freshwater loch, about 5 km long, in the centre of the Isle of Mull, in Scotland.

It is drained by the River Bà, flowing into Loch na Keal, a sea loch on the west of Mull.

[1] The Loch Bà ring dike, found on the Isle of Mull in Scotland, serves as a classic example of a well formed ring dike.

The composition varies from rhyolite to felsite, with phenocrysts of alkali feldspar and mafic minerals.

This Scottish location article is a stub.