SZ
| Acronym | Definition |
|---|---|
| SZ | Size |
| SZ | Switzerland |
| SZ | Swaziland (Internet country code top-level domain) |
| SZ | Sueddeutsche Zeitung (German Newspaper) |
| SZ | Shenzhen, China |
| SZ | Schwyz (Suisse Canton) |
| SZ | Schizophrenia |
| SZ | Seizure |
| SZ | Sub Zero |
| SZ | Subzero (gaming clan) |
| SZ | Sunyaev-Zel'dovich Effect |
| SZ | Surf Zone |
| SZ | Zero-Terminated String |
| SZ | Shadow Zone (Static-X album and song) |
| SZ | Surveillance Zone |
| SZ | Szöllösy (Béla Bartók index of works) |
| SZ | Surface Zero |
| SZ | ScrollZ (Unix-based IRC Client) |
| SZ | Slovenska Železnice (railway of Slovenia) |