The Bözberg railway line is a railway line in Switzerland, running between Basel and Brugg via Pratteln, Rheinfelden, Stein-Säckingen, Frick and the Bözberg Tunnel. At Brugg it connects to Zürich via Baden and to the Gotthard Railway via the Aargauische Südbahn.

Brugg is a Swiss municipality and a town in the canton of Aargau and is the seat of the district of the same name. The town is located at the confluence of the Aare, Reuss, and Limmat, with the Aare flowing through its medieval part. It is located approximately 16 kilometers (9.9 mi) from the cantonal capital of Aarau; 28 kilometers (17 mi) from Zürich; and about 45 kilometers (28 mi) from Basel.