The Tyrian metaltail (Metallura tyrianthina) is a species of hummingbird in the subfamily Lesbiinae, the brilliants and coquettes.

[3][4] The Tyrian metaltail has these seven subspecies:[3] In the early twentieth century some authors treated M. t. chloropogon and M. t. smaragdinicollis as full species but that treatment has not been widely accepted.

The male of the nominate subspecies has bottle green upperparts and gray underparts with pale fringes on the feathers.

Both sexes of M. t. chloropogon have a coppery red tail; the male is otherwise almost completely black and the female has only a few spots on the throat and upper breast.

M. t. smaragdinicollis has a violet tail like districta but the female's throat and upper breast are heavily spotted like those of the nominate.

[7] The Tyrian metaltail makes significant elevational movements between the seasons, even occurring casually as low as 600 m (2,000 ft) in Venezuela.

[7] The Tyrian metaltail forages in the canopy of bushes and medium-sized trees, where males defend territories.

The Tyrian metaltail does not sing often; its song is "a repeated series of weak, high-pitched, lispy notes 'seek..sik..see..si..see..sip..see.......see..seek..see..see...'."