The surf clam (Spisula solida) is a medium-sized marine clam, or bivalve mollusc, found in the Eastern Atlantic from Iceland and northern Norway to Portugal and Spain. Up to long, like many clams, the surf clam is a sediment-burrowing filter feeder.
<div align=center>
Right and left valve of the same specimen:
<gallery mode="packed" length="400">
File:Spisula solida 01.jpg|Right valve
File:Spisula solida 02.jpg|Left valve
</gallery>
</div align=center>
This species of clam is found in sandy bottom in the sublittoral zone. It is commonly found in the North Sea, Baltic Sea and the Irish Sea.