The cathedral's pipe organ was built in 1403 but has not survived to the present day. Only 12 pipes and a small part of the wooden structure remain. The creator of the original pipe organs was Frédéric Schambantz.

It was replaced in 1733 with a new one, built by François Thierry - a member of a famous French family of organ builders. The new organ has been maintained and rebuilt to the present day. The last major renovation was carried out in 1992, during which it was equipped with an automated computer-controlled mechanism.