Ziyu () may refer to:
Cheng Dechen (died 632 BC), courtesy name Ziyu (子玉), general of Chu Zengzi (505–435 BC), courtesy name Ziyu (子輿), disciple of Confucius Tantai Mieming (born 512 BC), courtesy name Ziyu (子羽), disciple of Confucius Ziyu (Han Clan), head of the House of Han Zhou Ziyu, retired general of the People's Liberation Army Air Force Tzuyu or Chou Tzu-yu (born 1999), Taiwanese singer, dancer, and member of South Korean girl group Twice Zi Yu (born 2002), Chinese singer and actor
See also Ziyou (disambiguation)