Eugerres is a genus of fish in the family Gerreidae, the mojarras. The genus was erected by David Starr Jordan and Barton Warren Evermann in 1927. They are native to the Atlantic and Pacific coasts of the Americas, occurring mainly in salt and brackish waters, but may enter fresh water. The genus also includes one strict fresh water species, E. mexicanus, native to southern Mexico and Guatemala (E. castroaguirreiGonzález-Acosta, A.F. & Rodiles-Hernández, R. (2013): New species of Eugerres from the Usumacinta Province, México and Guatemala with a redescription of E. mexicanus (Steindachner, 1863) (Teleostei: Gerreidae). Neotropical Ichthyology, 11 (2): 307-318. is a junior of E. mexicanus)
