Nectomys apicalis, also known as the western Amazonian nectomys,[2] is a semiaquatic species of rodent in the genus Nectomys of family Cricetidae.

It is found east of the Andes in Ecuador, Peru, and Bolivia, east into western Brazil; further to the east, it is replaced by N. rattus.

It lives near watercourses in lowland tropical rainforest.

[1] Its karyotype has 2n = 38–42, and it probably actually represents several distinct undescribed species.

[2] This article about a rodent is a stub.