Bazi may refer to:

• Bazi (king), legendary Mesopotamian king
• Eight Characters (Chinese: 八字; pinyin: Bāzì), Chinese astrological concept
• Bazi Rural District, Central District, Nimruz County, Sistan and Baluchestan province, Iran
• Bazi Township in Pingwu County, Sichuan, China
• Robert Weiß (pilot) (1920–1944), nicknamed Bazi, Austrian-born German World War II ace