English abbreviations from ats to atton
- ATS (Atelier de Construction de Tarbes)
- ATSA (American Translation Studies Association)
- ATSC (Advanced Television Systems Committee)
- ATSD ((U.S.) Assistant to the Secretary of Defense)
- ATSD(AE) (Assistant to The Secretary of Defense (Atomic Energy))
- ATSD(IO) (Assistant to The Secretary of Defense (Intelligence Oversight))
- ATSD(NCB) (Assistant to The Secretary of Defense For Nuclear and Chemical and Biological Defense Programs)
- ATSDR (Agency for Toxic Substances and Disease Registry)
- ATSF (Alert Transport Service Facility)
- ATSM (Athletic Training Sports Medicine)
- ATSO (Ability To Survive and Operate)
- ATSS (Automatic Test Support System)
- ATSU (Air Traffic Services Unit)
- ATSUI (Apple Type Services for Unicode Imaging)
- ATT (Atmautluak Airport (FAA: 4A2))
- ATTAC (Advanced Tradewars, Tactical Assault And Conquer)
- ATTACH (Attachment)
- ATTAP (Advanced Turbine Technology Application Program)
- ATTC (All Terrain Tracked Carrier)
- ATTD (Advanced Technology Transition Demonstration)
- ATTF (Anti-Terrorist Task Force)
- ATTK (A Time to Kill)
- ATTN (Attention)
- ATTO (Assistive Technology Training Online)
- ATT ON (Attenuation On (a reduction in the amplitude level of the outputted sound))