Mr Low Thia Khiang is a Singaporean former politician who served as Secretary-General of the Workers' Party between 2001 and 2018. He was first elected as the MP for Hougang Single Member Constituency during the 1991 General Election and became Secretary-General of the Workers’ Party on 27 May 2001.
He served as one of two opposition MPs between 2001 and 2011, and he was the de facto opposition leader between 2006 and 2018. He became one of five elected opposition MPs of Aljunied GRC in the 13th Parliament and represented the Bedok Reservoir-Punggol division between 2011 and 2020.
Mr Low stepped down as the MP for Aljunied GRC prior to the 2020 General Election, making him Singapore's longest serving opposition MP with 29 years in service.