Nathan Law (Chinese: ???, mixed name: Nathan Law Kwun-chung; born 13 July 1993) is a politician and activist in Hong Kong.
As a former student leader, he has been chairman of the Representative Council of the Lingnan University Students' Union (LUSU), acting president of the LUSU, and secretary-general of the Hong Kong Federation of Students (HKFS).
He was one of the student leaders during the 79-day Umbrella Movement in 2014.
He is the founding and former chairman of Demosisto, a new political party derived from the 2014 protests.
On 4 September 2016, at the age of 23, Law was elected to serve as a legislator for Hong Kong Island, making him the youngest lawmaker in the history of the Legislative Council of Hong Kong.
Over his controversial oath-taking at the Legislative Council inaugural meeting, his office was challenged by the Hong Kong Government which resulted in his disqualification from the Legislative Council on 14 July 2017.