The commune of Agen is the prefecture of the Lot-et-Garonne department in Nouvelle-Aquitaine in southwestern France.

Agen may also refer to:

Places Agen (meteorite), an H chondrite meteorite that fell to earth on September 5, 1814, in Aquitaine, France. Agen-d'Aveyron, a commune in the Aveyron department in the Occitanie region in southern France. Arrondissement of Agen, an arrondissement of France in the Lot-et-Garonne department in the Nouvelle Aquitaine region. Canton of Agen-1, an administrative division of the Lot-et-Garonne department, southwestern France Canton of Agen-2, an administrative division of the Lot-et-Garonne department, southwestern France Canton of Agen-3, an administrative division of the Lot-et-Garonne department, southwestern France Canton of Agen-4, an administrative division of the Lot-et-Garonne department, southwestern France.

People of Agen Alberta of Agen (died ca. 286), Roman venerated as a martyr and saint Caprasius of Agen or Saint Caprais, venerated as a Christian martyr and saint of the fourth century Phoebadius of Agen (died ca. 392), Catholic bishop of the fourth century William II of Agen (also known as Guillaume d'Agen), Latin Patriarch of Jerusalem in 1261–1270 surname Addison Agen, American singer, runner up in season 13 of American The Voice James H. Agen (1847–1921), American businessman and politician

Others SU Agen Lot-et-Garonne, French rugby union club based in Agen Agender, a term used by individuals who identify with no gender