Rhododendron hyperythrum (微笑杜鹃, wei xiao du juan) is a Rhododendron species endemic to north-central Taiwan at 900–1200 meters altitude. It grows as a shrub or small tree with leathery leaves, elliptic-lanceolate to oblong-lanceolate, 7–12 × 2–3.5 cm in size, with white flowers.
Icon. Pl. Formosan. 3: 133–134 1913.