Lithocarpus glaber, the Japanese oak, is a tree species in the genus Lithocarpus found in Japan, China and Taïwan.

Mitami Shrine, a Shinto shrine in Sakai, Osaka Prefecture, Japan, is famous locally for its comparatively large population of Lithocarpus glaber, known as Shiribukagashi (尻深樫 シリブカガシ). In China, it is called ke (柯).