The golden-tailed starfrontlet (Coeligena eos) is a species of hummingbird in the "brilliants", tribe Heliantheini in subfamily Lesbiinae.

The adult female's forehead is plain green; the rest of the upperparts are colored like the male's but are duller.

[7] The golden-tailed starfrontlet is found in the Andes of western Venezuela between the states of Lara and Táchira.

[7] The golden-tailed starfrontlet gathers nectar from long tubular flowers, usually of low to medium height.

In addition to feeding on nectar it captures small arthropods by gleaning from foliage, hovering, and by hawking.

It makes a cup nest of moss, lichens, and rootlets lined with softer plant material, and typically attaches it to a vertical branch within vegetation.

[7] As of early 2023 neither xeno-canto nor the Cornell Lab of Ornithology's Macaulay Library had any recordings of the golden-tailed starfrontlet's vocalizations.