Six new species of Cumacea from Indonesia are described: Campylaspis calmani n.sp., Cumella alinae n.sp., C.bunakenensis n.sp, Nannastacus antipai n.sp., N. mitreae n.sp. and Paradiastylis bunakenensis n.sp. The description of Iphinoe insolita Petrescu,1992 is completed. All these Indonesian species are related with Japanese and Australian species.