Bagnols-sur-Cèze is a commune in the Gard department in the Occitainie région in southern France.

A small regional center, Bagnols-sur-Cèze was quite certainly a Roman town (the name of the town comes from the Latin balnearius meaning baths) before the main part was built in the 13th century around a central arcaded square that is still preserved today. At the same period, the regional market was installed here, undoubtedly contributing to its expansion.

Bagnols-sur-Cèze expanded steadily after the Marcoule nuclear center was created in 1956.

The old center of Bagnols-sur-Cèze retains its historic feel, with small streets and largely preservered architecture. Several façades are remarkable. The towns contains a notable museum of contemporary art, the Musée Albert-André, founded in 1868 as well as an archaeological museum with a collection of artifacts found mainly in nearby Roman sites.