| JCSA | Jaguar Club of Southern Arizona 
| Others |
| JCSA | Jamaica Civil Service Association
| Others |
| JCSA | James City Service Authority
| Others |
| JCSA | James City/County Service Authority
| Others |
| JCSA | Jeep Club South Africa
| Others |
| JCSA | Jefferson County Sewage Association
| Others |
| JCSA | Jefferson County Sports Association
| Others |
| JCSA | Jefferson County Sports Authority
| Others |
| JCSA | Jersey City Soccer Association
| Others |
| JCSA | Jersey Coast Shark Anglers
| Others |
| JCSA | Jesuit Conference of South Asia
| Others |
| JCSA | Jewish Communal Service Association
| Others |
| JCSA | Jiangxi Changhe Suzuki Automobile
| Others |
| JCSA | Johnson County Sports Association
| Others |
| JCSA | Joint C4ISR System Architecture
| Others |
| JCSA | Jonas Clarke School Association
| Others |
| JCSA | Jose Carreras Society of America
| Others |
| JCSA | Joseph Conrad Society of America
| Others |
| JCSA | Josephine County Sportsman Association
| Others |
| JCSA | Josephine County Sportsman's Association
| Others |
| JCSA | Journal of Computer Science and Applications
| Others |
| JCSA | Journal of Computer Sciences and Applications
| Others |
| JCSA | Journal of the Catch Society of America
| Others |
| JCSA | Junior Civil Servants Association
| Others |