ALCON
| Acronym | Definition |
|---|---|
| ALCON | All Concerned |
| ALCON | Astronomical League Convention |
| ALCON | All Connections |
| ALCON | Alert Condition |
| ALCON | Alarm Console |
| ALCON | Alexander and Connors (cofounders of ALCON corporation, Fort Worth, Texas) |
| ALCON | Anime League Convention |