Hyposmocoma waikamoi is a species of moth of the family Cosmopterigidae.

It is endemic to Maui.

The wingspan is 10.4–11 mm for males and 9.8–9.9 mm for females.

[1] The specific name is derived from the Nature Conservancy reserve on east Maui to which the species is apparently restricted.

This Hyposmocoma moth related article is a stub.