The green-and-white hummingbird (Elliotomyia viridicauda ) is a species of hummingbird in the family Trochilidae. It is endemic to the East Andean slope in Peru, where generally restricted to areas near humid forest. It is commonly seen at Machu Picchu. It closely resembles the white-bellied hummingbird, but lacks white to the basal half of the tail.
This species was formerly placed in the genus Amazilia. A molecular phylogenetic study published in 2014 found that Amazilia was polyphyletic. In the revised classification to create monophyletic genera, the green-and-white hummingbird was placed in a new genus Elliotomyia.