Selene orstedii, the Mexican moonfish, is a species of ray-finned fish within the family Carangidae.

[1] The species is found in the eastern Pacific Ocean, off the coasts of Baja California, Mexico to Ecuador.

[2] Adults are found in shallow coastal waters at depths up to 50 meters below sea level, usually near the seafloor.

[2][3] Selene orstedii currently has no known major threats, although it is often caught in artisanal fisheries through the use of gill nets, and is an important species of commercial fish in the Gulf of Montijo, Panama.

There are currently no specific conservation efforts for the species, and its distribution already overlaps with marine protected areas within the eastern Pacific.