Clavus beckii is a species of sea snail, a marine gastropod mollusk in the family Drilliidae.
The shell is oblong, cylindrically attenuated, sharp at the apex and six-angled. The whorls are longitudinally tuberculated at the angles.The entire shell is olive-brown except the tubercles, which are white. The columella and the interior of the mouth are brown. The siphonal canal is very short.
