The black-banded sunfish (Enneacanthus chaetodon) is a freshwater fish species of the sunfish family (Centrarchidae). They are found in the United States ranging from New Jersey to central Florida. The defining feature of this Black-banded sunfish is the black vertical strips that it has on both sides of its body. The term "Enneacanthus" comes from the Greek terms ennea, which means "nine times", and acanthi, which means "thorn". It is in a genus that consists of only three species along with the Banded Sunfish Enneacanthus obesus and the Blue-spotted Sunfish Enneacanthus gloriosus. Collectively, they are commonly referred to as the "Banded Sunfish" or "Little Sunfish".