Nagant may refer to:
Fabrique d'armes Émile et Léon Nagant, defunct Belgian manufacturer of firearms and cars (1859-1931) Mosin–Nagant, bolt-action infantry rifle Nagant M1895, 7-shot gas-seal revolver Nagant wz. 30, Polish-made derivative of the M1895 revolver 7.62×38mmR, proprietary gas-seal ammunition designed for the M1895 revolver 7.5mm 1882 Ordnance, 7.5mm cartridge designed for the Swiss military Lady Nagant, a character in the manga series My Hero Academia