Owa or OWA may refer to: Owa language, a language of the Solomon Islands Ōwa, an era in Japanese history Owa Obokun Adimula, the title of the traditional ruler of the Ijesha people of Nigeria Owa (dance), a traditional dance of Tripura, India Owa, a variant of Oba (ruler), a Nigeria title for a ruler, used among the Ijesha Acronyms Open Web Analytics, open source web analytics software Open World Assumption, formal reasoning with incomplete knowledge Optimized wideband array antenna, a type of Yagi–Uda antenna Ordered weighted averaging aggregation operator, a class of operator used in fuzzy logic Outlook Web App, a web-based email client, now part of Outlook on the web Open Wireless Architecture, an element of 4G cellular phone technology One Woman Army (disambiguation)