Weir Quay is a place on the banks of the River Tamar in Devon, England.

It lies 1 mile (1.6 km) south west of the village of Bere Alston.

Weir Quay is where the Tamar estuary narrows into the tidal river.

The Tamar was navigable by seagoing ships of up to 400 register tons as far inland as here.

This Devon location article is a stub.