Kanwal Ziai (born Hardayal Singh Datta) was an Urdu and Hindi language poet and author from India.
Ziai was born on 15 March 1927 in Kanjrur Dattan, Sialkot, (now Pakistan). He received award Doon Ratan from Nagrik Parishad. He obtained Urdu Fazil certificate. He retired from Defence Department. He was also president of the Bazm-e-Jigar. He died on October 27, 2011 in Dehradun, Uttarakhand, India. ..