| FOCAS | Fellowship Of Christian Anglers Society | 基督教钓鱼协会联谊会 |
| FOCAS | FOCAS Foreign Military Sales Order Processing for Contract Administration Services | 合同管理服务的FOCAS外国军事销售订单处理 |
| FOCAS | Flag Officer Carriers and Amphibious Ships (Royal Navy until Mid 80s) | 旗官航母和两栖船（英国皇家海军，直到80年代中期） |
| FOCAS | Friends Of County Animal Shelters | 县动物收容所之友 |
| FOCAS | Faint Object Classification and Analysis System | 模糊物体分类与分析系统 |
| FOCAS | Fellowship Of Christian Adult Singles | 基督教成年单身者联谊会 |
| FOCAS | Fiber-Optics Communications for Aerospace Systems | 航空航天系统的光纤通信 |
| FOCAS | Forward Crash Avoidance Systems | 前向防撞系统 |
| FOCAS | Friends of Cumbria Archives (UK) | 坎布里亚之友档案馆（英国） |
| FOCAS | Fiber Optic Cable Assemblies | 光纤电缆组件 |