10th Corps, Tenth Corps, or X Corps may refer to:

• 10th Army Corps (France)
• X Corps (Grande Armée), a unit of the Imperial French Army during the Napoleonic Wars

• X Corps (German Empire), a unit of the Imperial German Army
• X Reserve Corps (German Empire), a unit of the Imperial German Army
• X Army Corps (Wehrmacht), a unit in World War II
• X SS Corps, a unit in World War II

• 10th Army Corps (Russian Empire)
• 10th Rifle Corps (USSR)
• 10th Mechanized Corps (Soviet Union)

• X Corps (India)
• X Corps (Ottoman Empire)
• X Corps (Pakistan)
• X Army Corps (Spain)
• X Corps (United Kingdom)
• X Corps (United States)
• X Corps (Union Army)

• X Corp.
• X-Corporation
• List of military corps by number
• 10th Army (disambiguation)
• 10th Battalion (disambiguation)
• 10th Brigade (disambiguation)
• 10th Division (disambiguation)
• 10th Regiment (disambiguation)
• 10th Squadron (disambiguation)