Seventeen species of Cumacea are recorded from the Vancouver island region, of which only Diastylis bidentata Calman has been reported from this area. New distribution is given for Leucon fulvus Sars, Eudorella emarginata (Kröyer), Eudorellopsis biplicata Calman, Diastylis koreana Calman, D. paraspinulosa Zimmer, Leptostylis villosa Sars, Lamprops fuscata Sars, and L. quadriplicata S. I. Smith. The following species are described as new: Hemilamprops gracilis, Eudorella pacifica, E. tridentata, Diastylis pellucida, Lamprops carinata, L. serrata, Cumella vulgaris and Campylaspis rufa.