Castelnaudary is a railway station in Castelnaudary, Occitanie, France. The station opened on 22 April 1857 and is on the Bordeaux–Sète line. It is at the southern end of the town, about a 5–10-minute walk from the centre. The station is served by Intercités (long distance, as well as night train) and TER (local) services operated by the SNCF.