Asen
- Aasen (disambiguation)
- Asen (state)
- Asen (vodun)
- Asen dynasty
- Ashina tribe
- Assen (disambiguation)
- Association for the Study of Ethnicity and Nationalism
- Australian Student Environment Network
- Azen (disambiguation)
- Bulgaria
- Jaime Asensio de la Fuente
- List of Bulgarian military equipment of World War II
- Åsen (disambiguation)