AR5, AR 5, or AR-5 can refer to:
- ArmaLite AR-5, a .22 caliber bolt-action aircrew survival rifle
- Arkansas Highway 5, a designation for three state highways in Arkansas
- Arkansas's 5th congressional district, an obsolete district
- IPCC Fifth Assessment Report, a 2014 synthesis report produced by the Intergovernmental Panel on Climate Change
- USS Vulcan (AR-5), a US Navy repair ship
This disambiguation page lists articles associated with the same title formed as a letter–number combination.
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