Wilkiea rigidifolia is a species of flowering plant in the family Monimiaceae, and is native to north Queensland and New Guinea.

Male flowers are borne in leaf axils, sometimes on older wood, in highly branched clusters of 20 to 30, 35–40 mm (1.4–1.6 in) long, each flower more or less bell-shaped, 3–5 mm (0.12–0.20 in) in diameter with 4 pairs of tepals, each flower on a pedicel 7–9 mm (0.28–0.35 in) long, with 2 or 3 pairs of stamens.

[2] This species was first formally described in 1941 by Albert Charles Smith who gave it the name Kibara rigidifolia in Journal of the Arnold Arboretum.

[3][4] In 2007, Trevor Paul Whiffin and Donald Bruce Foreman transferred the species to Wilkiea as W. rigidifolia in the Flora of Australia.

[5] This species grows in a variety of habitats, from dry woodland to rainforest at altitudes up to 550 m (1,800 ft) on the Cape York Peninsula, in northeast Queensland and in the Western Province of Papua New Guinea.