Wug or WUG may refer to:
- Wake Up, Girls!, a Japanese mixed-media project, consists of idol group/seiyuu unit and anime series
- Wireless user group, a wireless network run by enthusiasts
- Wirtschaft und Gesellschaft, the original title of Max Weber's magnum opus Economy and Society
- Universiade (translated as World University Games), an international athletic event for university students
- An imaginary creature depicted in the psycholinguistic investigative tool known as the Wug Test
- Wyższy Urząd Górniczy , the State Mining Authority in Poland