| ASSN | Association | 协会 |
| ASSN | AcadÉmie Suisse des Sciences Naturelles (French: Swiss Academy of Sciences) | AcadÉmie Suisse des Sciences Naturelles (French: Swiss Academy of Sciences) |
| ASSN | Accademia Svizzera di Scienze Naturali (Italian: Swiss Academy of Sciences) | 自然科学学院（意大利语：瑞士科学院） |
| ASSN | ASEAN Standards Service Network | 东盟标准服务网络 |
| ASSN | Accountable Station Symbol Number | 责任站符号编号 |
| ASSN | Arc Suppressor Snubber Network | 消弧减震器网络 |
| ASSN | Academia Svizra da Scienzas NatÜralas (Slovakian: Swiss Academy of Sciences) | Academia Svizra da Scienzas NatÜralas (Slovakian: Swiss Academy of Sciences) |