AT

• .at
• AT form factor
• AT1 (disambiguation)
• ATS (disambiguation)
• Aarne-Thompson classification system
• Acceptance test
• Aliança da Terra
• Ampere-turn
• Anaerobic threshold
• Anguilla
• Anti-tank
• Antithrombin
• Appalachian Trail
• Appropriate technology
• Archive Team
• Ashmore and Cartier Islands
• Assistive technology
• Astatine
• At, Bihar
• Ataxia telangiectasia
• Atchison County, Kansas
• Athletic Trainer
• Attotesla
• Auckland Transport
• Aurangabad district, Bihar
• Austria
• Automatic transmission
• Aviation Electronics Technician
• DIN connector
• Hayes command set
• IBM Personal Computer/AT
• Kip (currency)
• Province of Asti
• Royal Air Maroc
• Technical atmosphere
• at (command)
• at sign
• preposition
• transactional analysis