楔叶杜鹃（学名：Rhododendron cuneatum）为杜鹃花科杜鹃属下的一个种。

Rhododendron cuneatum (楔叶杜鹃) is a rhododendron species native to northern and western Yunnan and southwestern Sichuan in China, where it grows at altitudes of 2700-4300 meters. It is a shrub that grows to 2 m in height, with leaves that are narrowly to broadly elliptic or oblong-lanceolate, 1–7 × 0.5–2.8 cm in size. Flowers are deep purple to rose-lavender, rarely white, usually with darker marking.