AR-1

AR1 may refer to

• AR-1 (multiple rocket launcher), a Chinese multiple rocket launcher system
• AR-1 (missile), a Chinese air-to-ground missile
• Aerojet Rocketdyne AR1, a rocket engine
• Alba AR1, an experimental racing car
• Archaerhodopsin-1, a photoreceptor
• Arkansas's 1st congressional district
• Arkansas Highway 1
• ArmaLite AR-1, a bolt-action rifle manufactured by ArmaLite
• IPCC First Assessment Report
• USS Medusa (AR-1), a repair ship of the United States Navy
• Acoustic Research AR-1, an acoustic suspension speaker from Acoustic Research