Wo or WO may refer to:
Airlines World Airways (former IATA code: WO), a 1948–2014 US airline Swoop (airline) (former IATA code: WO), a former Canadian ultra low-cost airline
Language Wo (kana), a Japanese kana Wolof language (ISO 639-1 code "wo")
Sport Walk-off (disambiguation) Walkover, awarded if there are no opposing players available.
People Zhang Wo, Chinese painter of the Yuan Dynasty Wo Weihan (1949–2008), an executed Chinese scientist and entrepreneur W. O. Bentley (1888–1971), British car designer Wo Ding, traditionally believed to be a king of the Shang Dynasty Wo Jia, a king of the Shang Dynasty
Other uses Warrant officer, a military rank Wine of Origin, a designated area for South African wine production Wo' or Uo, a month of the Haab' in the Mayan calendar Wo, a chimpanzee deity of the Yaoundé people of the Cameroons; son of Zamba Wo Fat (disambiguation), several fictional characters "Wo" (song), by Olamide, 2017
See also W0 (disambiguation) WOA (disambiguation) Woah (disambiguation) Woe (disambiguation) Woh, an Indian TV series Woo (disambiguation) Wu (disambiguation) VVO (disambiguation) OW (disambiguation) W/o (disambiguation)