Acalles echinatus is species of beetle from the family Curculionidae. It inhabits Europe and the Transcaucasia.
This species was first described in 1824 by Ernst Friedrich Germar under the name Cryptorhynchus echinatus. The typical site was indicated as Carniola in the present Slovenia.
Acalles echinatus, together with nine other species, forms the echinatus group within the genus Acalles, characterized by a triangular shape edeagusa. Sibling species for A. echinatus are Acalles fallax and Acalles petryszaki.