| Acronym | Sense | Language | Topics |
|---|---|---|---|
| CSU | Central Switching Unit | In English | |
| CSU | Cultures et Sociétés Urbaines | In French | → Sociology |
| CSU | Christlich-Soziale Union in Bayern (www.csu.de) | In German | → Christian-democratic parties → Germany |
| CSU | Coordonnateur des Secours d'Urgence | In French | → Accidents, risks, safety |