C. Y. Lee (1938-, Chinese: 李祖原; pinyin: Li Zuyuan; Wade–Giles: Li Tsǔyuán) is a Taiwanese architect based in Taiwan, born in Guangdong, China. He received his bachelor's degree from National Cheng Kung University, (Tainan, Taiwan) and his master's degree from Princeton University (Elizabeth, New Jersey, U.S.A.). He directed the design of Taipei 101, the world's tallest skyscraper in that time, as of 2004.

• Taiwan
  • Hung Kuo Building, Taipei, 1989.
  • Grand 50 Tower, Kaohsiung, Taiwan's tallest building from 1992 to 1993.
  • Far Eastern Plaza I & II, Taipei, 1994.
  • Tuntex Sky Tower, Kaohsiung, Taiwan's tallest building from 1997 to 2004.
  • Grand Formosa, Taichung, 1997.
  • Taiwan Taoyuan International Airport-Terminal 2, Taoyuan, 2000.
  • Chung Tai Chan Monastery, Nantou, the tallest Buddhist temple in the world since 2001, and the tallest Buddhist Building in the world from 2001 to 2006.
  • New Chien-Cheng Circle, Taipei, 2003.
  • Taipei 101, Taipei, Taiwan's tallest building since 2004, and the tallest skyscraper in the world from 2004 to 2009.

• China
  • Post & Telecommunications Center, Tianjing, 1998.
  • Yuda International Trade Center, Zhengzhou, 1999.
  • Fangyuan Mansion, Shenyang, 2001.
  • Jinsha Plaza, Shenyang, 2001.

• Taipei 101
• C. P. Wang - One of C. Y. Lee's architect partner.

• C. Y. Lee Architects Office Official Website
• Emporis - List of major designs of C.Y. Lee & partners