The demand for fish and fish products is rising throughout the world; thus, the fish producing countries has an opportunity to export to consuming countries. In the similar vein, aquaculture production in Bangladesh has increased dramatically over the past years; as a result, after meeting domestic demand, there is potential for export. Therefore, this study tried to assess the export potentiality of three most prevailing aquaculture species of Bangladesh i.e., pangasius, tilapia and rohu. Data were collected from 820 aquaculture farmers in Bangladesh and different secondary sources. The study used Policy Analysis Matrix (PAM) to assess the export potentiality and Domestic Resource Cost (DRC) criteria was used to examine comparative advantage. Results indicated that the producers are not discouraged significantly through the existing policy interventions and average market prices for the inputs are less than the world prices. Regarding the output price, results indicated that the prices of pangasius and tilapia are less than the international price while the price of rohu is higher than the international price. However, producers of pangasius and rohu are unprotected through policy interventions while tilapia producers are protected through the policy interventions. The commodity system of selected three fish species are competitive at producer level. The value of DRC indicates that Bangladesh has comparative advantage in pangasius, tilapia and rohu fish production. The study suggests to provide more output support, given the existing input support or might enhance the input support for aquaculture species.