Leslie Koo

Leslie Koo Cheng-yun
辜成允
Born(1954-11-28)28 November 1954
Died23 January 2017(2017-01-23) (aged 62)
Taipei, Taiwan
Other namesGu Chengyun
EducationUniversity of Pennsylvania (MBA)
OccupationBusinessperson
ParentKoo Chen-fu
RelativesChester Koo (brother)

Leslie Koo or Koo Cheng-yun (Chinese: 辜成允; pinyin: Gū Chéngyǔn; Wade–Giles: Ku Ch'eng-yün; 28 November 1954 – 23 January 2017) was a Taiwanese business executive and billionaire who served as Chairman of Taiwan Cement Corporation. He was the second son of the prominent businessman and diplomat Koo Chen-fu, and a member of the Lukang Koo clan, one of the five wealthiest families of Taiwan.