Alen may refer to:

• Alen (unit of length), or Aln, a traditional Scandinavian unit of distance
• Alen (given name), a Bosniak and Croatian given name
• Alen (Indonesia), a place in Indonesia

Alén may refer to:

• Alén (name)
• Monte Alén National Park, Equatorial Guinea

Ålen is a village and a former municipality in Sør-Trøndelag county, Norway. The village is the administrative centre of the municipality of Holtålen. The former municipality encompassed the southeastern half of the present-day municipality of Holtålen.