Rome is the name of a department of the First French Empire in present-day Italy. It was named after the city Rome. It was formed in 1808, when the Papal States were annexed by France, and was known as the Département du Tibre (after the Tiber river) before being renamed in 1810.
Following the conquest of the Eternal City, Napoleon gave his son the style "His Majesty the King of Rome".
It was disbanded after the defeat of Napoleon in 1814. Its territory corresponds approximately to the modern Italian region of Lazio.
The department was subdivided into the following arrondissements and cantons (situation in 1812):
- Rome; cantons: Bracciano, Civitavecchia, Frascati, Marino, Morlupo and Rome (9 cantons).
- Frosinone; cantons: Alatri, Anagni, Ceccano, Ceprano, Ferentino, Filettino, Frosinone, Guarcino, Monte San Giovanni, Prossedi, Ripi, Supino, Vallecorsa and Veroli.
- Rieti; cantons: Canemorto, Castelvecchio, Magliano, Monteleone, Narni, Poggio Mirteto, Rieti, Stroncone and Torri.
- Tivoli; Anticoli, Monterotondo, Olevano, Palestrina, Palombara, Subiaco, Tivoli, Vicovaro.
- Velletri; cantons: Albano, Cori, Genzano, Paliano, Piperno, Segni, Sermoneta, Sezze, Terracina, Valmontone and Velletri.
- Viterbo; cantons: Bagnorea, Canino, Caprarola, Civita Castellana, Corneto, Montefiascone, Orte, Ronciglione, Sant'Oreste, Soriano, Toscanella, Valentano, Vetralla, Vignanello and Viterbo.