Sir Cho-yiu Kwan CBE JP (Chinese: 關祖堯; 10 July 1907 – 7 December 1971) was a prominent Hong Kong politician and public figure in the 1960s.

He set up his own law firm, CY Kwan & Co, with the help of Sir Ho Tung in 1931 soon after he returned from England.

[1] During the Japanese occupation of Hong Kong, Kwan was appointed the officer in administering the staple food control.

After the war, he was the vice-president of the Standing Military Court from 1945 to 47 and chief magistrate of the Central Magistracy.

[2] He was one of the founders of the Hong Kong Housing Society, invited by Bishop Hall, and sat on the Executive Committee of the Society for many years which devoted in providing housing suitable for the low-income residents in Hong Kong in 1948.

[2] From 1956 to 1961, he was appointed unofficial member of the Urban Council of Hong Kong, until he retired and was succeeded by Wilson Tze-sum Wang on 7 April 1961.

[2] On the morning of 7 December 1971, SIr Kwan had a heart attack while the Executive Council was in session and died despite attempts at resuscitation .

In his eulogy for Kwan, Governor Crawford Murray MacLehose said: "He always proffered fearless, frank and wise counsel and he worked tirelessly until the last.