Chay Wai Chuen (Chinese: 谢惠泉; pinyin: Xiè Huìquán; born 5 March 1950) is a Singaporean diplomat and former politician. A former member of the governing People's Action Party (PAP), he was the Member of Parliament (MP) representing the Queenstown ward of Brickworks GRC between 1988 and 1997 and later Tanjong Pagar GRC between 1997 and 2006.