| ACRN | Asthma Clinical Research Network (National Heart, Lung and Blood Institute) | 哮喘临床研究网络（国家心肺血液研究所） |
| ACRN | America's Career Resource Network | 美国的职业资源网络 |
| ACRN | Accounting Classification Reference Number | 财务账目分类基准数 |
| ACRN | AIDS Certified Registered Nurse | 艾滋病注册护士 |
| ACRN | All Campus Radio Network (Ohio University) | 全校园无线网络（俄亥俄大学） |
| ACRN | Asthma Clinical Research Network | 哮喘临床研究网络 |
| ACRN | All Campus Radio Network | 全校园无线网络 |
| ACRN | Acorn Products, Inc. | 橡子产品有限公司。 |
| ACRN | Australian City And Regional Network | 澳大利亚城市和地区网络 |
| ACRN | Auckland Citizens and Ratepayers Now | 奥克兰市民和纳税人现在 |