Venus nux is a species of saltwater clam. They are marine bivalve molluscs in the family Veneridae, sometimes known as the venus clams.
Venus nux can reach a size of 30–45 mm (1.2–1.8 in). The shells are globular, with dense, concentric ribs on the surface.
The species is widespread in the Mediterranean Sea and the Atlantic littorals of Portugal and Spain.
