Bözen is a village in the Swiss canton of Aargau. It lies to the west of the Bözberg in the upper Frick valley. Until December 31, 2021, Bözen was an independent municipality in the district of Brugg, since then it has been one of four villages in the newly created municipality of Böztal in the district of Laufenburg.

Böztal is a municipality in the district of Laufenburg in the canton of Aargau in Switzerland. It was established on 1 January 2022 with the merger of the municipalities of Bözen, Effingen, Elfingen and Hornussen.