Zi or ZI may refer to: Zi (surname) (子), a surname used by Shang kings Zi (title) (子), a Chinese honorific used for ancient viscounts and for master philosophers Zi (name) (字), an alternate term for East Asian courtesy names Zi (cuneiform), a sign in cuneiform writing Zi Corporation, a Canadian software company Zi (album), a 2016 album by Negură Bunget Zi (prefix symbol) of the binary unit prefix zebi for digital data Zi (Zoids), a fictional planet in the Zoids media franchise Zona incerta, a region in the subthalamus Aigle Azur (IATA airline code) See also Chinese characters, sometimes known as zi (字) in Chinese