Shibui (渋い) (adjective), shibumi (渋み), or shibusa (渋さ) are Japanese words that refer to a particular aesthetic of simple, subtle, and unobtrusive beauty. Like other Japanese aesthetics terms, such as iki and wabi-sabi, shibui can apply to a wide variety of subjects, not just art or fashion.

Shibumi is a novel published in 1979, written in English by Trevanian, a pseudonym of Rodney William Whitaker.