Longuemare's sunangel (Heliangelus clarisse) is a species of hummingbird in the "coquettes", tribe Lesbiini of subfamily Lesbiinae.

The adult male of the nominate H. c. clarisse has a narrow glittering blue-green frontlet just above the bill, a dusky crown, and dark bronzy green upperparts.

The inner tail feathers are dark bronzy green and the outer ones blackish and occasionally have pale tips.

The male H. c. verdiscutus has an emerald green frontlet, a deep bronzy purple crown, and a dark line along the upper edge of the gorget.

[7] The nominate Longuemare's sunangel H. c. clarisse is found in Colombia's Eastern Andes and adjacent western Venezuela.

H. c. verdiscutus is restricted to the Tamá Massif, an extension of Colombia's eastern Andes on the border with Venezuela.

[3][7] Longuemare's sunangel primarily inhabits the edges of humid cloudforest and elfin forest.

Its nest of moss and fine plant material is usually hung below a leaf or other structure that provides shelter from the weather.