The Purple-capped Fruit-dove (Ptilinopus porphyraceus), also known as the Crimson-crowned Fruit-dove (leading to easy confusion with the Beautiful Fruit-dove, alternatively known as the Crimson-capped Fruit-dove), is a species of bird in the Columbidae family. It is found in American Samoa, Fiji, Marshall Islands, Micronesia, Niue, Samoa, Tonga, and Wallis and Futuna Islands. Its natural habitats are subtropical or tropical moist lowland forests and subtropical or tropical mangrove forests.