| CISCO | Cisco Systems, Inc. | 思科系统公司 |
| CISCO | Commercial & Industrial Security Corporation | 商业和工业安全公司 |
| CISCO | Council of Intermodal Shipping Consultants | 多式联运航运顾问委员会 |
| CISCO | Central Illinois Steel Company | 伊利诺伊州中部钢铁公司 |
| CISCO | Civil Service Catering Organisation | 公务员膳食组织 |
| CISCO | Corps Information Systems Control Officer | 陆军信息系统控制官 |
| CISCO | Computer Information System Company | 计算机信息系统公司 |