Woi or WOI may refer to:
WOI (AM), a radio station (640 AM) in Ames, Iowa WOI-FM, a radio station (90.1 FM) Ames, Iowa WOI-DT, a television station in Ames, Iowa War of independence, such as a war of national liberation Warrant Officer Class I, a rank in the British Armed Forces Woi language, a Malayo-Polynesian language Women's Organization of Iran, an Iranian women's rights organization