Leucopternis is a Neotropical genus of birds of prey in the family Accipitridae.

Their plumage is largely black or gray above and white below, and they have distinctive orange ceres.

However, as the genus probably was polyphyletic,[2] moves of species to other genera were proposed[3] and have been accepted by the American Ornithologists' Union's South American Check-list Committee[4] and North American Check-list Committee,[5] except that the South American Committee placed the former L. lacernulatus in the existing genus Buteogallus instead of in a new genus Amadonastur by itself.

The other species were placed in the genera Cryptoleucopteryx, Morphnarchus, Pseudastur, and Buteogallus.

According to this treatment, the species remaining in Leucopternis are: