| Rank | Abbreviation | Meaning |
|---|
| ***** | WISA | Wire Industry Suppliers Association
| |
| *** | WISA | Wechsler Intelligence Scale for adults
| |
| ** | WISA | Waterloo Ismaili Students Association
| |
| * | WISA | Workshop on Information Security Assurance
| |
| * | WISA | Web Investigations and Security Agency
| |
| * | WISA | Web Information Systems and Applications
| |
| * | WISA | Workshop on Information Security Applications
| |
| * | WISA | What If Scenario Analysis
| |
| * | WISA | West Indies States Association
| |
| * | WISA | Wednesday Independent Supporters Association
| |
| * | WISA | Water Institute of South Africa
| |
| * | WISA | Willamette International Student Association
| |
| * | WISA | Woolwich Independent Staff Association
| |
| * | WISA | Waite Institute Students' Association
| |
| * | WISA | Western India Shippers Association
| |
| * | WISA | Wireless Internet Service Architecture
| |
| * | WISA | Women in Science Award
| |
| * | WISA | West Indies Sugar Association
| |
| * | WISA | Washington International Staff Associations
| |
| * | WISA | West Indian Softball Association
| |
| * | WISA | Wine Industry Suppliers Australia
| |
| * | WISA | Wimbledon Independent Supporters Association
| |
| * | WISA | Wireless Interface for Sensors and Actuators
| |
| * | WISA | Work Incentives Software Advisory
| |
| * | WISA | Whitney Institute School Association
| |