Encyclia advena is a species of epiphytic orchid,[1] native to Atlantic forests in Brazil.

Encyclia advena is a medium-sized, hot to warm growing, epiphytic species, with conic-elongate pseudobulbs carrying 1 to 2, apical, coriaceous, narrowly lanceolate leaves and flowers in the Brazilian spring (December to March).

Because of its first flowering time, in December, the orchid is also named as "the Advent encyclia".

[2] Encyclia advena has olive or yellow petals and sepals with brown or maroon veins.

[3] Encyclia advena grows in the eastern Atlantic rainforests of Brazil at elevations of 200 to 800 meters as a medium sized, hot to warm growing epiphyte with conic-elongate pseudobulbs.