Garrison (various spellings) (from the French garnison, itself from the verb garnir, "to equip") is the collective term for a body of troops stationed in a particular location, originally to guard it, of more than 50 men, but now often simply using it as a home base. The station is usually a city, town, fort, castle or similar. For example, the 1st Battalion, 1st Infantry (U.S.) is garrisoned at West Point. Garrison town is a common expression for any town that has a military barracks.

British garrison

In the modern British Army, garrison also specifically refers to any of the major military stations such as Aldershot, Catterick, Colchester, Tidworth, Warminster and London, which have more than one barracks or camp and their own military headquarters, usually commanded by a Colonel, Brigadier or Major-General, assisted by a Garrison Sergeant Major. In Ireland, Association Football (as distinct from Gaelic Football) has historically been termed the "garrison game" due to its connections with British military serving in Northern Ireland.It can also be described as a piece of clothing.

Israeli garrison

In Israel, a garrison unit (; cheil matzav) is a regular unit defending a specified zone such as a city, a province, a castle or fortress, or even a single building.