大字杜鹃（学名：Rhododendron schlippenbachii）为杜鹃花科杜鹃花属下的一个种。

Rhododendron schlippenbachii, the royal azalea, is a species of Rhododendron native to the Korean Peninsula and adjacent regions of Manchuria (Liaoning, Nei Mongol), Japan, and the Russian Far East. It is the dominant understory shrub in many Korean hillside forests, growing at 400-1500 m altitude.