The goldenthroats are a small group of hummingbirds in the genus Polytmus.
The genus Polytmus was introduced by the French zoologist Mathurin Jacques Brisson in 1760 with the type species as Polytmus guainumbi thaumantias, a subspecies of the white-tailed goldenthroat. The name of the genus is from the Ancient Greek ÃÂÿûàÃÂùüÿàpolutimos "very costly", "valuable".
The genus contains three species: