Kingsley Sit Ho-yin (born 1949, Hong Kong) was the member of the Legislative Council of Hong Kong. Sit first attempted in the 1985 Legislative Council election, the first election of the colony's legislature in the New Territories West electoral college consisting of members of the Tuen Mun and Yuen Long District Board but was lost to Tai Chin-wah. In the 1988 Legislative Council election, he successfully gained a seat in the South Kowloon electoral college. The powerful Heung Yee Kuk chairman Lau Wong-fat is the brother of Kingsley Sit's wife.