In the study of aquaculture, much attention has been focused on bio-technical aspects. Economic research is often neglected by researchers and fish farmers. This paper examined the profitability of fish farming in Niger State, Nigeria. Data was collected by means of semi-structured questionnaire administered to 90 fish farmers randomly selected from three Agricultural zones in Niger State. The study revealed that fish farming is profitable in Niger State as a result of positive net returns, high rate of incomes and benefit-cost ratios and, therefore capable of creating employment, generating income and improving the standard of living of the people. Fish farming should therefore be encouraged and supported. Support could be in the form of technical assistance or subsidies.