Zaba, Żaba, Žaba, or Žába (Czech and Slovak feminine: Žabová or Žábová) is a surname. Notable people include:
- August Kościesza-Żaba (1801–1894), Polish Kurdologist
- Derek Zaba, American attorney and advisor
- Matt Zaba (born 1983), Canadian ice hockey player
- Zbyněk Žába (1917–1971), Czech Egyptologist