Pneumatic cannon may refer to:

• Dynamite gun, any of a class of artillery pieces that use compressed air to propel an explosive projectile
• FN 303, a semi-automatic less-lethal riot gun
• Holman Projector, a naval anti-aircraft weapon
• M61 Vulcan, a hydraulically, electrically, or pneumatically driven, six-barrel, air-cooled, electrically fired Gatling-style rotary cannon
• M134 Minigun, a six-barrel rotary machine gun with a high rate of fire
• Potato cannon, a pipe-based cannon that uses air pressure, or combustion of a flammable gas to fire projectiles, usually potatoes

• Air cannon (disambiguation)
• Air gun (disambiguation)
• Pneumatic weapon, a weapon that fires a projectile by means of air pressure

This disambiguation page lists articles associated with the title Pneumatic cannon.
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