Prince of Civitella-Cesi is an Italian noble title granted to Giovanni Torlonia (1755–1829) of the Torlonia family.
In exchange for the administration of finances of the Holy See with the blessing of the Pope, Giovanni Torlonia was created in 1794 Duke of Bracciano and Count of Pisciarelli; in 1803 Marquis of Romavecchia and Turrita; and 1st Prince of Civitella Cesi (Princeps Romanus); he was created a Patrizio Romano in 1809 (with Papal confirmation of that honor on January 19, 1813) and Duke of Poli and Guadagnolo in 1820, among other titles. He was the builder of the Villa Torlonia in Rome.