Jaén can mean:
- Jaén, Spain, a city in Spain
- Province of Jaén (Spain), a province in Spain
- Jaén, Peru, a city in Peru
- Jaén Province, Peru, a province in Cajamarca Region, Peru
- Jaen, Nueva Ecija, a municipality in the Philippines
- Jaen (grape), an alternative name for the Spanish red grape Mencia
- Jaén (grape), a Spanish white grape
- Jaén tinto (grape), a Spanish red grape
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