Castel Rozzone (Bergamasque: ) is a comune (municipality) in the Province of Bergamo in the Italian region of Lombardy, located about east of Milan and about south of Bergamo. As of 31 December 2004, it had a population of 2,705 and an area of .
Castel Rozzone borders the following municipalities: Arcene, Brignano Gera d'Adda, Lurano, Treviglio.