The buff-winged starfrontlet (Coeligena lutetiae) is a species of hummingbird in the "brilliants", tribe Heliantheini in subfamily Lesbiinae.

Females have a paler throat than the nominate and a cinnamon tinge to the underparts, whose golden green is also less iridescent.

[3][7] The buff-winged starfrontlet is generally sedentary, though some movement to follow flowering plants has been noted.

It most often forages at low levels at the margins of forest, and often clings to flowers to feed as well as hovering.

The buff-winged starfrontlet makes a "thin, wiry chatter with rattles", often during territorial disputes.

[7] The IUCN has assessed the buff-winged starfrontlet as being of Least Concern, though its population size is not known and is believed to be decreasing.

[1] Though it has a fairly large overall range, its habitat is patchy, fragmented, and under continuing threat of deforestation.