Sz

SZ may refer to
* the Alfa Romeo SZ
* the Canton of Schwyz
* the NATO country code for Switzerland
* the Suzuki sporadic group, a mathematical group
* the Suzuki–Ree group family of mathematical groups
* Slovenske železnice (SŽ), the Slovenian railway company
* Szöllősy, the catalogue of all the compositions of Béla Bartók
* SZ cycle-car, a Soviet/Russian microcar series including SZA and SZD
* the Sunyaev-Zel'dovich effect in astrophysics
* Green Party (Czech Republic) ("Strana zelených")
* the city of Shenzhen in Guangdong province, People's Republic of China
* the SZ, a model of VAIO from Sony
* Sprite Zero, diet version of Sprite

The grapheme sz which
*In Polish represents the sound IPA| [ʂ] , see Sz (digraph).
*In Hungarian, representing the sound [s] (while 's' is pronounced as IPA| [ʃ] ), see Sz (digraph).
*In German, the historical origin of the ligature ß.

the acronym sz is
* C string, in Hungarian notation, sometimes used when programming in C, an acronym representing 'string terminated by zero'