| Acronym | Definition |
|---|
| FCCO➣Feral Cat Coalition of Oregon |
| FCCO➣Football Club du Canton d'Oradour (French football club) |
| FCCO➣First Class Coach Company (St. Petersburg, FL) |
| FCCO➣Fort Carson, Colorado (US Army) |
| FCCO➣Formation Conventionnelle Continue des Orthoptistes (French: Conventional Continuous Training of Orthoptists) |