KYUU

KYUU may refer to:


 * The number 9|nine in Japanese
 * KSMM (AM), a radio station (1470 AM) licensed to Liberal, Kansas, United States, which used the call sign KYUU from October 1988 to February 2008
 * KMVQ-FM, a former NBC owned and operated radio station (99.7 FM) licensed to San Francisco, California, United States, which used the call sign KYUU-FM from 1978 to October 1988.
 * KYUU-LD, a television station (channel 35) licensed to Boise, Idaho, United States
 * Kyū, a Japanese system for designating levels of ability