RSZ
| Acronym | Definition |
|---|---|
| RSZ | Rijksdienst Voor Sociale Zekerheid (Belgium National Social Security Office) |
| RSZ | Radio Society of Zambia (Kitwe, Zambia) |
| RSZ | Railway Systems of Zambia Ltd. (Kabwe, Zambia) |
| RSZ | Re-Scaled Sum of Z-Scores |
| RSZ | Ranotsara Shear Zone (geology) |
| RSZ | Replication Slow Zone (biological chemistry) |