| Honorific-Prefix: | The Honourable |
| Dennis Tan | |
| Constituency Mp1: | Hougang SMC |
| Term Start1: | 10 July 2020 |
| Majority1: | 5,660 (22.42%) |
| Office2: | Non-Constituency Member of the 13th Parliament of Singapore |
| Alongside2: | Daniel Goh and Leon Perera |
| Term Start2: | 16 September 2015 |
| Term End2: | 22 June 2020 |
| Birth Date: | 31 August 1970[1] |
| Birth Place: | Singapore |
| Party: | Workers' Party |
| Spouse: | Tan Hui Tsing |
| Children: | 1 |
| Alma Mater: | University of Nottingham (LLB) University of Southampton (LLM) |
Dennis Tan Lip Fong (Chinese: s=陈立峰|p=Chén Lìfēng; born 31 August 1970) is a Singaporean politician and lawyer. A member of the opposition Workers' Party (WP), Tan has been the Member of Parliament (MP) representing Hougang SMC since 2020.
Tan was elected to the Workers’ Party Central Executive Committee member as Organising Secretary since 2022. He was previously the NCMP between 2015 and 2020.
Tan was educated at Nanyang Primary School, Raffles Institution and Raffles Junior College before he went on to read law at the University of Nottingham.[2] After graduating with a Bachelor of Laws (Honours) in 1994, Tan attended the Bar Professional Training Course in London and became a barrister-at-law at the Middle Temple. Later, he completed a Master of Laws in maritime law at the University of Southampton in 2005.[3]
Tan started as a volunteer with the Workers' Party during the 2011 general election, becoming a member in early 2012. He contested in the 2015 general election in Fengshan SMC and obtained 42.5% of the polled votes. Following the election, Tan was appointed a Non-Constituency Member of Parliament (NCMP) in the 13th Parliament, serving on the Public Petitions Committee of Parliament. He was previously a Non-constituency Member of Parliament (NCMP) of the 13th Parliament of Singapore from 16 September 2015 to 22 June 2020.[4] [5] At the 2020 general election, Png Eng Huat stepped down as Member of Parliament of Hougang SMC. Tan stood as a candidate in Hougang SMC.[6] During the campaign he complained that some of his campaign posters had been "pulled down" by the ruling PAP from their original height. However, in response, the Elections Department said that this was because the candidates posters had been posted at an incorrect height and could obstruct the sight of motorists.[7]
He defeated PAP's Lee Hong Chuang with 61.21% of the vote, retaining the seat for WP.[8]
Tan is a member of the Workers’ Party Central Executive Committee where he serves as the Organising Secretary. He has also previously served as Treasurer and vice-chair of the party's media team.[9] He was elected to the Workers’ Party Central Executive Committee member as Organising Secretary and as a member of the Estate and Liaison Committee and appointed as the Chairman of the Aljunied—Hougang Town Council from 2022 to 2024. Tan was appointed as the Vice- Chairman of the Aljunied—Hougang Town Council since 2024.
Tan has practised as a shipping lawyer since 1997. Prior to becoming an advocate and solicitor at the Supreme Court of Singapore in 1997, Tan was a barrister-at-law at the Middle Temple in London. He re-qualified as a solicitor at the Supreme Court of England and Wales in 1999 while working in the English law firm Stephenson Harwood. He was previously a partner in Ang & Partners, a shipping law firm. In 2005, he started the shipping law firm, DennisMathiew, with a partner. He is also a fellow of the Chartered Institute of Arbitrators in United Kingdom.
Tan participates in triathlons, and is fluent in Hokkien and Teochew. He is married to Tan Hui Tsing, also a lawyer and a Workers' Party member. Together they have a daughter.[10]