| Acronym | Definition |
|---|
| ASCO | American Society of Clinical Oncology |
| ASCO | Australian Standard Classification of Occupations |
| ASCO | Association of Schools and Colleges of Optometry (since 1941; Rockville, Maryland) |
| ASCO | Automatic Switch Company |
| ASCO | Advanced Systems and Concepts Office (US DTRA) |
| ASCO | Apothecaries Sundries Mfg Co (New Delhi, India) |
| ASCO | Assignment Consideration |
| ASCO | Association for the Study of Community Organization (est. 1946) |
| ASCO | Arab Satellite Communication Organization |
| ASCO | Army Space Cadre Office |
| ASCO | Advanced System Concepts Office |
| ASCO | Afghanistan Shuhada Charity Organization |