This dataset contains fish occurrence data collected in Tuvalu during a collaborative research project funded by the Asia-Pacific Network for Global Change Research. The project, lead by The University of the South Pacific, focused on the essential role of coral reef fisheries in supporting subsistence and artisanal fishers across four Pacific Island Countries and Territories (PICTs), namely, Fiji, Tonga, Tuvalu and Vanuatu. Given the increasing threats posed by land-based pollution, changing fishing practices, and habitat degradation, this research aims to gather regionally representative data that enhances fisheries management and informs conservation efforts.This Tuvalu dataset includes 43 fish species representing 10 families. Sampling locations for this dataset include sites in Funafuti.This research initiative was made possible through the invaluable support of the Tuvalu Fisheries Department, The University of the South Pacific Tuvalu Campus, and the communities in Funafuti. Data was collected by Lavata Nivaga, Paeniu Lopati, Filipo Makoli and Semese Alefaio.