This is a list of freshwater fish living wild in the US state of Maryland.

Bowfin (Amiidae)

Catfishes (Ictaluridae)

Eels (Anguillidae)

Gars (Lepisosteidae)

Herrings (Clupeidae)

Killifishes (Fundulidae)

Lampreys (Petromyzontidae)

Lotids (Lotidae)

Minnows (Cyprinidae)

Mudminnows (Umbridae)

Perches (Percidae)

Percopsids (Percopsidae)

Pikes (Esocidae)

Pirate perch (Aphredoderidae)

Poeciliids (Poeciliidae)

Pupfish (Cyprinodontidae)

Sculpins (Cottidae)

Silversides (Atherinopsidae)

Smelts (Osmeridae)

Snakeheads (Channidae)

Sticklebacks (Gasterosteidae)

Sturgeons (Acipenseridae)

Suckers (Catostomidae)

Sunfishes (Centrarchidae)

Temperate basses (Moronidae)

Trout and whitefish (Salmonidae)

References