ALTO
| Acronym | Definition |
|---|---|
| ALTO | Analyzed Layout and Text Object (computer text design) |
| ALTO | Association of Language Travel Organizations |
| ALTO | Association of Licensed Telecommunications Operators (various locations) |
| ALTO | Arkansas, Louisiana, Texas, Oklahoma |
| ALTO | Association of Language Tour Operators |
| ALTO | Anatolia Language and Testing Office (Anatolia College; Thessaloniki, Greece) |