滇南杜鹃（学名：Rhododendron hancockii）为杜鹃花科杜鹃属下的一个种。

Rhododendron hancockii (滇南杜鹃) is a rhododendron species native to Guangxi and Yunnan, China, where it grows at altitudes of 1100–2000 meters. It is a shrub or tree that grows to 2–7 m in height, with leathery leaves that are obovate or oblong-oblanceolate, 7–13 by 1.5–5 cm in size. Flowers are white with yellowish flecks.