The 2018 Kowloon West by-election was held on 25 November 2018 after the incumbent pro-democracy Legislative Councillor Lau Siu-lai of Kowloon West was disqualified from the Legislative Council of Hong Kong (LegCo) after the oath-taking controversy resulted in the disqualifications of the six pro-democracy and localist legislators. It followed the by-election of four other vacated seats on 11 March 2018. Chan Hoi-yan, a nonpartisan backed by the pro-Beijing camp won over veteran democrat Lee Cheuk-yan of the Labour Party, a backup candidate for the pro-democracy camp after Lau's candidacy was disqualified.