| Acronym | Definition |
|---|
| WAAS | Wide-Area Application Services (Cisco) |
| WAAS | Wide Area Augmentation System (GPS) |
| WAAS | World Academy of Art and Science (est. 1960) |
| WAAS | Wide Area Augmentation System |
| WAAS | Wide Area Acceleration Services |
| WAAS | Wide Area Application Services |
| WAAS | Washington Alternate Assessment System (student performance) |
| WAAS | WHS (Washington Headquarters Services) Allotment Accounting System |
| WAAS | Wide-Area Airborne Surveillance System (US Air Force) |
| WAAS | Whelen All American Series (National Association for Stock Car Racing) |
| WAAS | World Aircraft Accident Summary (database) |
| WAAS | Website as a Service (various companies) |