Yu Hung-chun (Chinese: 俞鴻鈞; pinyin: Yú Hóngjūn) (4 January 1898 – 1 June 1960), widely known as O. K. Yui, was a Chinese political figure who served as mayor of Shanghai, chairman of the Taiwan Provincial Government and Premier of the Republic of China.


  • In 1915, he graduated from Shanghai Min Sheng High School.
  • In 1919, he graduated from St. John's University of Shanghai.
  • In 1927, he was appointed as secretary of English diplomacy of foreign affairs manager.
  • 23 March, 1937 – the Executive Yuan resolved that Yu Hung-chun may act as mayor of Shanghai.
  • 27 July, 1937 – the Nationalist Government appointed Yu Hung-chun as mayor of Shanghai.
  • 30 June, 1958 – resigned as the president of the Executive Yuan.(Premier of the Republic of China)


Government offices
Preceded by
Wu Tiecheng
Mayor of Shanghai
Succeeded by
Chen Gongbo
Preceded by
K. C. Wu
Chairman of the Taiwan Provincial Government
Succeeded by
Yen Chia-kan
Preceded by
Chen Cheng
Premier of the Republic of China
Succeeded by
Chen Cheng
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