The White-throated Hummingbird (Leucochloris albicollis) is a species of hummingbird in the Trochilidae family. It is the only member of the genus Leucochloris. It is found in north-eastern Argentina, south-eastern Brazil, Paraguay, and Uruguay.

It is found in forest, woodland, parks and gardens. It is generally common, and therefore considered to be of least concern by BirdLife International.