Gênes is the name of a département of the First French Empire in present Italy, named after the city of Genoa. It was formed in 1805, when Napoleon Bonaparte occupied the Republic of Genoa. Its capital was Genoa. The département was subdivided into the following arrondissements and cantons (situation in 1812):
- Genoa, cantons: Genoa (6 cantons), Rivarolo, Nervi, Recco, San Martino d'Albaro, San Quirico, Sestri Ponente, Staglieno, Torriglia and Voltri.
- Bobbio, cantons: Bobbio, Ottone, Varzi and Zavattarello.
- Novi, cantons: Novi, Gavi, Ovada, Rocchetta, Ronco, Savignone and Serravalle.
- Tortona, cantons: Tortona, Cassano Spinola, Castelnuovo Scrivia, San Sebastiano, Villalvernia and Volpedo.
- Voghera, cantons: Voghera, Argine, Broni, Casteggio, Codevilla, Sale, Silvano, Soriasco and Stradella.
Its population in 1812 was 400,056, and its area was 237,600 hectares.
It was disbanded after the defeat of Napoleon in 1814. Its territory is presently divided over the Italian provinces Genoa, Piacenza, Alessandria and Pavia.
The trousers called jeans in English are named for the bleu de Gênes, a blue dye used for denim.