ZG, Zg, or zg may refer to:
Arts and entertainment
- Z-G, a 2001 collectible action figure game
- ZOEgirl, an American pop band
- Zubeen Garg (1972-2025), Indian singer and actor
Places
- Zagreb, the capital of Croatia
- Zigong, Sichuan province, China
- Canton of Zug, Switzerland
- Zhōngguó (中国), the Chinese name for China.
Units of mass
- Zeptogram (zg), 10<sup>−21</sup> g
- Zettagram (Zg), 10<sup>21</sup> g
Transport and military
- Viva Macau, a defunct Chinese airline (2005–2010; former IATA:<code>ZG</code>)
- Zipair Tokyo, a Japanese airline (founded 2018; IATA:<code>ZG</code>)
- Defunct vehicle plate code for Pitkin County, Colorado, US
- Zerstörergeschwader, a German military unit equipped with twin-engined fighters such as Bf 110s