Plasma cannon

Plasma cannon may refer to the following:
 * Type-26 Anti-Infantry Stationary Gun - The main Covenant stationary defense plasma turret commonly known as the Shade.
 * Type-42 Directed Energy Support Weapon - A Covenant heavy support weapon seen exclusively in Halo 2.
 * Type-52 Directed Energy Support Weapon - The Covenant's standard portable plasma turret in Halo 3, Halo 3: ODST and Halo: Reach.
 * Class-2 Energy Gun, weapons mounted on many Covenant vehicles.
 * Plasma turret - The powerful plasma turret on Covenant warships.
 * Covenant automated plasma turret - the defense structure used to protect the Covenant citadel as seen in Halo Wars.
 * Automated plasma turret - Seen in the Halo 3 multiplayer map, Snowbound, to prevent players from exiting the combat area.