Omana or Omaña may refer to:
- Omana, a 1972 Indian Malayalam language film
- Omaña, a comarca in Spain
- Omana Gopalakrishnan, an Indian translator of Russian books into Malayalam
- Sohar, the town of Omana mentioned by Pliny the Elder
- Omaña river, a river in Castille and León
- Las Omañas, municipality of the Spanish province of Castille and León