WASO

WASO may refer to:


 * Waso, a month in the traditional Burmese calendar that marks the beginning of the traditional Buddhist retreat during the rainy season
 * WASO (AM), a defunct radio station (730 AM) formerly licensed to Covington, Louisiana, United States
 * West Australian Symphony Orchestra, the premier professional orchestra of the state of Western Australia
 * Worms: A Space Oddity, a video game
 * Babo Airport, in Babo, Western New Guinea, Indonesia (ICAO code WASO)
 * Washington Office (WASO), the central administrative office of the National Park Service; see Organization of the National Park Service
 * Wake After Sleep Onset, a measure of the time spent awake after first falling asleep, often used in somnology
 * waso, a word in Toki Pona meaning "bird"