OU or Ou or ou may stand for:
Universities United States Oakland University in Oakland County, Michigan Oakwood University in Huntsville, Alabama Oglethorpe University in Atlanta, Georgia Ohio University in Athens, Ohio Olivet University in San Francisco, California University of Oklahoma in Norman, Oklahoma
Japan Osaka University, a national research university Okayama University, a national university Onomichi City University, a public university in Hiroshima Prefecture Otemae University, a private university in Hyogo Prefecture Ohu University, a private university in Fukushima Prefecture
Other countries Hong Kong Metropolitan University, Hong Kong, previously the Open University of Hong Kong Osnabrück University, Germany Open University, United Kingdom Open University of Mauritius, Mauritius Osmania University, India University of Otago, New Zealand University of Ottawa, Canada University of Oxford, United Kingdom
Language and writing Ou (digraph) Ou (ligature), the ligature ȣ in the Latin and Greek alphabets Uk (Cyrillic), the Cyrillic letter Ꙋ, derived from the ou ligature OU, an abbreviation for Old Ukrainian, an aspect of the Ruthenian language from the 11th to the 14th century
Surnames Ō (surname), anglicized as Oh and often romanized as Ou, (王), a Japanese family name Ou (surname) (區 or 歐), a Chinese family name
Geography Nam Ou, a river in Laos Ōu (奥羽), a synonym of Tōhoku region, Japan Ōu Mountains Ōu Main Line Ohu University
Organizations Croatia Airlines (IATA code OU) Orthodox Union (Union of Orthodox Jewish Congregations of America) Our Ukraine (political party)
Other uses Ōū, a bird (Psittirostra psittacea) oculi uterque, Latin for both eyes, in eyeglass prescriptions Organizational Unit in computing, particularly in the Lightweight Directory Access Protocol (LDAP) Over unity, a phrase related to perpetual motion "Overused", in competitive Pokémon tiering One Utama, or 1 Utama