Caladenia roei is a species of orchid endemic to the south-west of Western Australia.

[3][4] It has a single erect, hairy leaf and up to three greenish-yellow and red flowers with a relatively broad labellum.

The sepals have thick, yellowish-brown, club-like glandular ends 3–4 mm (0.1–0.2 in) long.

[3] The clown orchid is found across a wide area of the south-west of Western Australia from as far north as the Murchison River to as far east as Ravensthorpe where it grows in a range of habitats but is especially common on granite outcrops.

[2][3][4][6] Caladenia roei is classified as "not threatened" by the Western Australian Government Department of Parks and Wildlife.