Cattleya maxima is a species of orchid in subfamily Epidendroideae found from Ecuador to Peru.

[1][2] Leaf oblong or broadly oblong, rounded at apex, light green, up to 35 cm long and up to 6 cm wide, thick and fleshy.

[1] Flowers 12–15 cm wide, with lilac or pale rose sepals and petals, except the lip or labellum, which has dark purple veins and a yellow area in the middle.

[2] Cattleya maxima occurs as an epiphyte on trees in dry forests from 100 to 1800 m of elevation,[3] from Ecuador to Peru.

[4] The upland variety can be found growing on rocky slopes.