'''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"
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