Chilecomadia valdiviana is a moth of the family Cossidae.

[1] It is found in Argentina and Chile (from Atacama to Aisén).

The wingspan is 48–60 mm.

The larvae feed on Nothofagus and Salix species and are considered a pest in Chilean eucalyptus plantations.

This article relating to the superfamily Cossoidea is a stub.