Castel Bolognese (Romagnol: Castël Bulgnés) is a comune (municipality) in the Province of Ravenna in the Italian region Emilia-Romagna, located about 40 kilometres (25 mi) southeast of Bologna and about 35 kilometres (22 mi) southwest of Ravenna.

Castel Bolognese borders the following municipalities: Faenza, Imola, Riolo Terme, Solarolo.

The railway station is called Castel Bolognese–Riolo Terme.

It is on the railway line connecting Bologna to Ancona.

Castel Bolognese can be reached through the A14 motorway which is the Italian part of the E45 European Route, by taking the exit Imola (coming from the North) or Faenza (coming from the South).