308 or .308 may refer to: 308, year 308 AD 308 BC 308 (number) .308 caliber, firearms cartridges with bullet diameters of 0.308 inches (7.62 mm) .308 Winchester, a popular rifle cartridge British Rail Class 308, an electric multiple unit train Peugeot 308, an automobile Several cars produced by Ferrari, including the Ferrari 308 GT4 and the Ferrari 308 GTB/GTS USS William Jones (DD-308) warship The 308 cubic inch Holden V8 engine