FCFS
| Acronym | Definition |
|---|---|
| FCFS | First Come First Served |
| FCFS | First Cash Financial Services (est. 1988; Arlington, TX) |
| FCFS | Fibre Channel Framing and Signaling |
| FCFS | Federació Catalana de Futbol Sala (Spanish: Catalan Federation of Indoor Soccer) |
| FCFS | Federation of Child and Family Services (now Federation of Community Social Services of British Columbia; Canada) |