Guotai is a pinyin transliteration of a Chinese given name; in Cantonese dialect, it may also transliterate as Kwok Tai; and in Singapore and Malaysia, as Kok Thay. Notable people with the name include:
Zhou Guotai, Chinese military general Law Kwok-tai, Republic of China (Taiwan) international footballer from Hong Kong in the 1950s and 1960s Lim Kok Thay, Malaysian billionaire
See also Guotai (disambiguation)