The Old Town in Aarhus, Denmark is an open-air town museum. In 1914 the museum opened as the world's first open-air museum of its kind, concentrating on town culture rather than village culture. Today the museum consists of 75 historical buildings collected from 20 townships in all parts of the country. The town itself is the main attraction but most buildings are open for visitors; rooms are either decorated in the original historical style or organized into larger exhibits.

The museum buildings are organized into a small town of chiefly half-timbered structures originally erected between 1550 and the late 19th century in various parts of the country and later moved to Aarhus during the 20th century.