The Ribbon-tailed astrapia, also known as Shaw Mayer's astrapia (Astrapia mayeri), is a species of bird-of-paradise. The ribbon-tailed astrapia is distributed and endemic to subalpine forests in western part of the central highlands of western part of the central highlands of Papua New Guinea. Like many other ornamental birds-of-paradise, the male is polygamous. The ribbon-tailed astrapia is the most recently discovered bird-of-paradise.