This policy brief has been developed following a regional research project designed to compile data on fishers’ movements, the drivers behind these movements and the impacts on host communities. The research was commissioned by the Marine Science for Management (MASMA) programme, under WIOMSA (Western Indian Ocean Marine Science Association), to investigate fishers’ migrations within and across five countries in the WIO region (Kenya, Tanzania, Mozambique, Comoros and Madagascar). The brief presents some of the major findings from Kenya, focusing on three important issues: (i) a characterization of migrant fishers operating along the Kenyan coast, (ii) the major drivers behind these migrations, and (ii) the impacts of migrant fishers on Kenyan communities of destination.