川西杜鹃（学名：Rhododendron sikangense）为杜鹃花科杜鹃属下的一个种。

Rhododendron sikangense (川西杜鹃) is a rhododendron species native to western Sichuan and northeastern Yunnan in China (the area of the former province of Sikang for which it is named), where it grows at altitudes of 2800–4500 meters. It is a shrub or small tree that grows to 3–5 m in height, with leathery leaves that are oblong-elliptic or elliptic-lanceolate, 7–12 by 2.5–5.5 cm in size. Flowers are white, purple, or pink, with purple flecks.