Kayi Cheung (simplified Chinese: 张嘉儿; traditional Chinese: 張嘉兒; Pinyin: Zhāng Jiā'ér; Yale: Jeung1 Ga1 Yi4, born on 18 November 1983) is a Hong Kong-Canadian model and beauty pageant titleholder who was crowned Miss Hong Kong 2007 and 1st Runner-up of the Miss Chinese International 2008. She also received the Miss Vitality Ambassador award. Cheung had said her goal is to become a successful programme host and to promote healthy living. Cheung is best friends with Tracy Chu, Roxanne Tong, Angel Chiang and Jennifer Shum.