| FSSU | Facultatea De Stiinte Socio Umane 
| Others |
| FSSU | Federasi Sepakbola Sastra Unpad
| Others |
| FSSU | Federated Superannuation Scheme For Universities
| Others |
| FSSU | Federated Superannuation System For Universities
| Others |
| FSSU | Federated Superannuation Systems for Universities
| Others |
| FSSU | File System And Scheduling Utilities
| Others |
| FSSU | Filipino Student Society of UNSW (University of New South Wales)
| Others |
| FSSU | Financial Sector Supervision Unit
| Others |
| FSSU | Financial Services Supervision Unit
| Others |
| FSSU | Financial Support Services Unit
| Others |
| FSSU | Food Security Surveillance Unit
| Others |