古巨基（Leo Ku），1972年8月18日出生于中国香港，中国香港男歌手、演员、主持人，毕业于沙田官立中学。

Leo Ku Kui-Kei is a Hong Kong Cantopop and Mandopop singer, actor, TV host, model, cartoonist, MV director, and producer and designer, a major figure in popular music culture. Ku was selected the "Ten Outstanding Young Persons of Hong Kong" in 2005 by the Government of Hong Kong. He is one of the few Cantopop artists who employ the use of falsetto (假音) – Because of this, many people, including David Tao, have praised this unique talent.