Lost Battalion may refer to:
Lost Battalion (World War I), American units which were isolated by Germans in 1918 Lost Battalion (Europe, World War II), an American battalion which was surrounded by Germans in 1944 Lost Battalion (Pacific, World War II), an American battalion and survivors from a ship's crew taken prisoner early in the Pacific War Lost Battalion (China), the Chinese Lost Battalion during the Defense of Sihang Warehouse in 1937 The Lost Battalion (1919 film), a 1919 film about the World War I event Lost Battalion (1960 film) a 1960 Filipino World War II film The Lost Battalion (2001 film), a remake of the 1919 film
See also Lost legions (disambiguation)