Gênes was a department of the French Consulate and of the First French Empire in present-day Italy. It was named after the city of Genoa. It was formed in 1805, when the Ligurian Republic (formerly the Republic of Genoa) was annexed directly to France. Its capital was Genoa.
The department was disbanded after the defeat of Napoleon in 1814. It was followed by a brief restoration of the Ligurian Republic, but at the Congress of Vienna the old territory of Genoa was awarded to the Kingdom of Sardinia. Its territory is now divided between the Italian provinces of Genoa, Piacenza, Alessandria and Pavia.
The trousers called jeans in English are named for the bleu de Gênes, a blue dye used for denim.