22 Corps, 22nd Corps, Twenty Second Corps, or XXII Corps may refer to:
XXII Reserve Corps, a unit of the Imperial German Army during World War I XXII Corps (Ottoman Empire), a unit in World War I XXII Corps (Union Army), a unit in the American Civil War XXII Corps (United States) XXII Corps (United Kingdom) XXII Mountain Corps (Wehrmacht) XXII Army Corps (Wehrmacht) XXII Army Corps (Italy) 22nd Army Corps (Russian Empire), a unit of the Imperial Russian Army between 1905 and 1918 22nd Army Corps (Russian Federation), a unit of the Russian Army since 2017
See also List of military corps by number