The Oasis Hummingbird (Rhodopis vesper) is a species of hummingbird in the Trochilidae family. It is found in coastal regions of Peru in a 100-200 km wide strip that extends the length of Peru's coastline, about 3000 km. It is also found in an adjacent population in Chile; a second disjunct population in coastal Chile exists 2000 km to the south, in a 75 by 200 km coastal strip.

The Oasis Hummingbird's natural habitats are subtropical or tropical dry shrubland, subtropical or tropical moist shrubland, and subtropical or tropical high-altitude shrubland.