The Pacific Islands-consisting of culturally diverse Melanesia, Micronesia, and Polynesia-is the ideal region to investigate the development of prehistoric fishing studies, as nowhere else on Earth is there such environmental contrasts among island types and their marine environments. We review the ichthyoarchaeological literature for the Pacific and assess developments in recovery methods, reference collections, taxonomic identifications, quantification, taphonomy and site-formation processes, ethnoarchaeology, approaches to diet and subsistence reconstructions, sustainability, and the importance of applied zooarchaeology for fisheries management and conservation. Ichthyoarchaeologists are beginning to work more closely with resource managers, fisheries biologists, policy makers, and indigenous communities to produce holistic studies of conservation management, resource sustainability, and assessments of human impacts on marine ecosystems over centuries to millennial time scales.