Lepomis or true sunfish is a genus of North American freshwater fish from the family Centrarchidae in the order Centrarchiformes. The generic name Lepomis derives from the Greek λεπίς ("scale") and πῶμα ("cover", "plug", "operculum"). The genus' most recognizable species is perhaps the bluegill.

Some Lepomis species can grow to a maximum overall length of 41 cm (16 in), though most average around 10–20 cm (3.9–7.9 in). Many species are sought by anglers as popular panfishes, and large numbers are bred and stocked in lakes, rivers, ponds and wetlands. They are widely distributed throughout the freshwater lakes and river tributaries of the United States and Canada, and several species have been translocated and flourished around the world, even becoming pests. Aquarium trade in some Lepomis species is prohibited in Germany for this reason.

Lepomis species, among others, are sometimes referred to as bream, but the term is also used to refer explicitly to the unrelated European cypriniform fish of genus Abramis.

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