| IACC | International Anti-Corruption Conference | 国际反贪污大会 |
| IACC | International Association of Conference Centers | 国际会议中心协会 |
| IACC | International Association of Colour Consultants | 国际色彩顾问协会 |
| IACC | International Association of Commercial Collectors, Inc. | 国际商业收藏家协会。 |
| IACC | Idaho Association of Commissioners and Clerks | 爱达荷州专员和办事员协会 |
| IACC | Islamic Association of Collin County (Texas) | 科林县伊斯兰协会（德克萨斯州） |
| IACC | Inter-Agency Air Cartographic Committee | 局际航空制图委员会 |
| IACC | Iranian American Chamber of Commerce | 伊朗美国商会 |
| IACC | International AntiCounterfeiting Coalition (Washington, DC, USA) | 国际反假冒联盟（美国华盛顿特区） |
| IACC | Interagency Autism Coordinating Committee (DHSS) | 机构间自闭症协调委员会（DHSS） |
| IACC | International Air Cargo Conference | 国际航空货运会议 |
| IACC | Indo-American Chamber of Commerce | 印度-美国商会 |
| IACC | International America's Cup Class | 国际美洲杯 |
| IACC | In-Advance Credit Check | 提前信用检查 |
| IACC | Infrastructure Assistance Coordinating Council | 基础设施援助协调委员会 |
| IACC | Intelligent Assistant Common Card | 智能助手通用卡 |
| IACC | Industrial Agriculture Communications Center | 工农业通信中心 |
| IACC | Interim Aircrew Systems Change | 临时机组系统变更 |