| FSAN | Full Service Access Network | 全业务接入网 |
| FSAN | Financial Statement Audit Network | 财务报表审计网络 |
| FSAN | Future Service(s) Access Network | 未来服务接入网络 |
| FSAN | Full-Services Access Network | 全服务接入网络 |
| FSAN | Full-Speed Access Network | 全速接入网络 |
| FSAN | Federal Nuclear Oversight Service (Russia) | 联邦核监督局（俄罗斯） |
| FSAN | Foreign Service Assignment Notebook | 外事派遣笔记本 |
| FSAN | Fire, Smoke, and Air-quality Network | 火灾、烟雾和空气质量网络 |