| ISSL | Integrated Services Over Specific Links | 特定链路上的集成服务 |
| ISSL | IBM Software Services for Lotus | IBM Lotus软件服务 |
| ISSL | Independent Schools of St. Louis | 圣路易斯独立学校 |
| ISSL | Immediate Skill Shortage List | 立即技能短缺列表 |
| ISSL | International Society for Social Law | 国际社会法学会 |
| ISSL | Inter-Societies Soccer League | 国际社会足球联赛 |
| ISSL | Initial Spares Support List | 最初备件支援表 |
| ISSL | Index to Sumerian Secondary Literature | 苏美尔第二文学索引 |