FZ or fz may refer to:
- Forzando, in music, forcingly, with strong emphasis, not unlike an accent
- Frank Zappa, an American composer, musician, and film director
- F-Zero, a futuristic racing video game by Nintendo
- Float-zone silicon, a high-purity alternative silicon grown
- Fold Zandura, an American alternative rock band
- Franc zone, a currency area in Africa
- Free Zone (disambiguation)
- Friend Zone, Texting slang
- Fuzhou, the capital of Fujian province in China