The Janssenmolen is an historic corn mill located on Molenweg in the town of Oirsbeek. The mill was built in 1879 by Jacob Lammeritz. The name of the mill comes from one of the first millers, Jan Janssen, who owned the mill until 1932. The Janssenmolen has been owned by the town of Oirsbeek since 1970. The town restored the mill in the late 1980s, and since then, the mill has been open to the public on the first Saturday of each month, with tours available at other times by appointment.