| JAS | Jackson Alternative School 
| Others |
| JAS | Jagt Attack Spaning
| Others |
| JAS | Jakarta Auto Show
| Others |
| JAS | Jalan Abdullah Silandae
| Others |
| JAS | Jamaica Agricultural Society
| Others |
| JAS | James
| Others |
| JAS | James Alfred Scotchford
| Others |
| JAS | Japan Agricultural Standards
| Others |
| JAS | Japan Air System
| Others |
| JAS | Japan Amateur Satellite
| Others |
| JAS | Japan America Society
| Others |
| JAS | Japan Atherosclerosis Society
| Others |
| JAS | Japan Auto Sports
| Others |
| JAS | Japanese Agricultural Standard
| Others |
| JAS | Japanese Agricultural Standards
| Others |
| JAS | Japanese Amateur Softball
| Others |
| JAS | Japanese Asian Specialty
| Others |
| JAS | JAS Compressed Bitmap graphics
| Others |
| JAS | Jasper, Texas
| Others |
| JAS | Java Alphabet Soup
| Others |
| JAS | Java Analysis Studio
| Others |
| JAS | Jazz Aspen Snowmass
| Others |
| JAS | Jenkins Activity Survey
| Others |
| JAS | Jesus At School
| Others |
| JAS | Jet Air System
| Others |
| JAS | Joan Alice Smith
| Others |
| JAS | Joan of Arc Society
| Others |
| JAS | Job Accuracy Satisfaction
| Others |
| JAS | Job Activities Scale
| Others |
| JAS | John A. Shirley Consulting
| Others |
| JAS | Johnston Ambulance Service
| Others |
| JAS | Joint Activation System
| Others |
| JAS | Joint Active Systems
| Others |
| JAS | Joint Armed Services
| Others |
| JAS | Joint Assistance Sponsorship
| Others |
| JAS | Jordanian Astronomical Society
| Others |
| JAS | Journal Abbreviation Sources
| Others |
| JAS | Journal About Science
| Others |
| JAS | Journal of Aerospace Science
| Others |
| JAS | Journal of Animal Science
| Others |
| JAS | Journal of Asian Studies
| Others |
| JAS | Journal of Atmospheric Science
| Others |
| JAS | Journal of the Atmospheric Sciences
| Others |
| JAS | Jrok's Arcade Simulator
| Others |
| JAS | Jroks Arcade Simulator
| Others |
| JAS | Judges Assignment System
| Others |
| JAS | July August and September
| Others |
| JAS | Jumping And Style (Showjumping Competition)
| Others |
| JAS | Juried Art Services
| Others |
| JAS | Just A Second
| Others |
| JAS | Just A Sinner
| Others |
| JAS | Just A Start
| Others |
| JAS | Juvenile ankylosing spondylitis
| Others |
| JAS | Jyotsna Amrit Solomon
| Others |