James To Kun-sun (/toʊ/; Chinese: 涂謹申; born 11 March 1963) is a Hong Kong lawyer and Democratic Party politician. From 1991 to 2020, To was a member of the Legislative Council of Hong Kong, representing the District Council (Second) constituency. In his final four years, To was the most senior member in the Legislative Council, and was also the convenor of the pro-democracy caucus from 2016 to 2017. He was also a former member of the Yau Tsim Mong District Council representing Olympic.