The great-billed hermit (Phaethornis malaris) is a species of hummingbird in the family Trochilidae.

It is found in Bolivia, Brazil, Colombia, Ecuador, French Guiana, Peru, Suriname, and Venezuela.

The former has a dark brown throat and breast and an orange-ochre belly; P. m. margarettae is very similar to bolivianus but has paler underparts.

Like most hermits, it builds a cone-shaped nest of plant fibers and spider silk suspended from the underside of a drooping leaf.

The great-billed hermit's song is generally "a continuous series of single, bisyllablic rising, falling 'slee-up' notes" that differs somewhat among the subspecies.

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

[1] However, "[subspecies] margarettae, limited to forest remnants in [eastern] Brazil, could be threatened by further habitat destruction.