CD Castellon is a Spanish football club based in Castellon de la Plana. They currently feature in the Segunda Division.
CD Castellon were established on July 22, 1922 and featured at intervals in La Liga. They could never hold their own in the Spanish top flight and mostly played in the lower levels.
CD Castellon finished runners-up in the Copa del Rey in the 1972-1973 season.
CD Castellon play their home matches at the Nou Castalia.