Rivoli's hummingbird (Eugenes fulgens) is a large hummingbird.

The adult male is green-bronze dorsally, becoming more bronzed on the black-tipped tail. The crown is violet, the throat gorget bright blue-green, and the rest of the head black apart from a white spot behind the eye. The chest is green-bronze and the belly grayish. The female is bronze-green dorsally and has a dull grey ventral colouring. There is a white stripe behind her eye. Immature birds are like the female, but darker and browner.