Acanthocinus griseus is a species of longhorn beetle of the subfamily Lamiinae.

It was described by Johan Christian Fabricius in 1792 and is known from Europe, Russia, and Asia Minor.

The beetles are 8-13 millimetres long and live for approximately 1–2 years.

They inhabit coniferous trees including those in the genera Pinus, Picea, and Abies.

This Acanthocinini article is a stub.