This paper is a systematic report on a collection of caddisflies from Papua‐New Guinea. Twenty‐four taxa are identified to species and nine others are determined only to the generic level. Te new species(Diplectrona papuanan. sp.,D. subtriangulaian. sp.,Herbertorossia kimminsin. sp.,Hydropsyche papuanan. sp.,Cheumatopsyche beronin. sp.,Polycentropus mounthagenin. sp.,P. elegansn. sp.,Polyplectropus chapmanin. sp.,Oecetis kimminsin.sp. andTriaenodes lelefominicusn.sp.)and the females ofPolycentropus similisKimm, andPolycentropus sinuosusKimm, are described. New faunistic data is presented for the other species which is supplemented in a few cases by taxonomic notes. The generaCheumatopsyche, PolyplectropusandNyctiophylaxare new to the fauna of New Guinea.