| WCO | World Customs Organization | 世界海关组织 |
| WCO | World Children Organization | 世界儿童组织 |
| WCO | Warehouse Capacity Owner | 仓库容量所有者 |
| WCO | Workplace Contact Officer | 工作场所联络官 |
| WCO | Washington Concert Opera | 华盛顿歌剧院 |
| WCO | Wet Catalyzed Oxidation | 湿式催化氧化 |
| WCO | West Coast Offense (football) | 西海岸攻势(足球) |
| WCO | Weapon Control Order | 武器控制命令 |
| WCO | World Customs Organisation (Brussels, Belgium) | 世界海关组织(比利时布鲁塞尔) |
| WCO | Weapons Control Officer | 武器控制官 |
| WCO | West Creek Outfitters, L.L.C. | West Creek Outfitters,L.L.C.公司。 |
| WCO | Wine Council of Ontario (St. Catharines, Ontario, Canada) | 安大略省葡萄酒委员会(加拿大安大略省圣凯瑟琳) |
| WCO | Weapons Control Order | 武器管制令 |
| WCO | Wet Chemical Oxidation | 湿式化学氧化 |
| WCO | IOF World Congress on Osteoporosis | IOF骨质疏松症世界大会 |
| WCO | Worldwide Customer Operations | 全球客户运营 |
| WCO | Wickenburg Chamber Orchestra | 威肯堡室内乐团 |
| WCO | West Central Ohio | 俄亥俄州中西部 |
| WCO | Wildlife Control Operator | 野生动物控制操作员 |
| WCO | Wycliffe Charitable Organisation | 威克利夫慈善组织 |
| WCO | West Coast Offense | 西海岸攻势 |