Oil
Olen stands for:
People:
- Olen (poet) , poet, cult founder and priest of the early Greek period
- Olen Steinhauer (* 1970), American author
- Olen Underwood , American football player
geographically:
- Olen (Belgium) , municipality in Flanders
- Olen (Russia) , Russian village in Tula Oblast
- Ølen , until 2005 a municipality in the Norwegian Fylke Rogaland
