No, dorado and mahi mahi are not the same fish. Dorado is the Spanish word for golden, so it's often used interchangeably with mahi mahi, which is Hawaiian for strong. However, they're actually two different species in the Coryphaena genus. The most notable difference between them is their coloration. Dorado are typically greenish-blue on top with a yellowish belly and bright blue spots, while mahi mahi are more of a uniform golden color.