This article deals with the nematode parasites infecting in some freshwater fishes of Manipur and Assam where the knowledge of fish parasites are less explored. The present study was carried out from 2009-2011. Seven species of nematode parasites were collected during the study period viz., Paraquimperia manipurensis Shomorendra and Jha, 2003; Camallanus anabantis Pearse, 1933; Procamallanus (Procamallanus) saccobranchi Karve, 1952; Goezia sp.; Spinitectus sp.; Philometra sp.; Cosmoxynemoides colisi Gambhir et al., 2006.