Fourteenth Army or 14th Army may refer to:
14th Army (German Empire), a World War I field Army 14th Army (Wehrmacht), a World War II field army Italian Fourteenth Army Japanese Fourteenth Army, a World War II field army, in 1944 converted to Japanese Fourteenth Area Army 14th Army (Soviet Union) Soviet 14th Guards Army, which occupied Moldovan Transnistria during the Transnistria War Fourteenth Army (United Kingdom) Fourteenth United States Army, a World War II 'phantom' force