| Honorific Prefix: | The Honourable |
| Yu Eui-dong | |
| Honorific Suffix: | MP |
| Native Name Lang: | ko |
| Birth Date: | 23 June 1971 |
| Birth Place: | Pyeongtaek, Gyeonggi, South Korea |
| Citizenship: | South Korean |
| Office1: | President of the New Conservative Party |
| Term Start1: | 5 January 2020 |
| Term End1: | 17 February 2020 Serving with: Ha Tae-keung Oh Shin-hwan Chung Woon-chun Ji Sang-wook |
| Predecessor1: | Position established |
| Successor1: | Position abolished |
| Office2: | Member of the National Assembly |
| Constituency2: | Pyeongtaek B |
| Term Start2: | 31 July 2014 |
| Predecessor2: | Lee Jae-young |
| Party: | People Power |
| Otherparty: | Saenuri (2014–2016) Bareun (2017–2018) Bareunmirae (2018–2020) NCP (2020) UFP (2020) |
| Alma Mater: | Hankuk University of Foreign Studies University of California, San Diego |
| Spouse: | Kim Yoon-jung |
| Occupation: | Politician |
| Blank1: | Religion |
| Data1: | Roman Catholic (Christian name: Andrew Kim Taegon) |
| Office: | Chair of the People Power Party Policy Planning Committee |
| Predecessor: | Park Dae-chul |
| Term Start: | 16 October 2023 |
Yu Eui-dong (born 23 June 1971) is a South Korean conservative[1] politician who is a Member of National Assembly for the Pyeongtaek B constituency since 2014.
Prior to his political career, Yu studied Thai language at Hankuk University of Foreign Studies.[2] He holds a master's degree in international relations from University of California, San Diego.[2] Following the graduation, he worked as a secretary for the ex-Prime Minister Lee Han-dong,[2] [3] as well as an aide for a former MP Ryu Ji-young.[2] [3]
Yu was elected as the MP for Pyeongtaek 2nd constituency at the 2014 by-election,[2] after the election of Lee Jae-young was nullified.[4] He gained 52.05% and defeated Chung Jang-sun of New Politics Alliance for Democracy.[5]
Few months after his re-election in 2016, he left Saenuri Party[6] (then Liberty Korea Party) and joined Bareun Party. When Yoo Seong-min was elected as the party's president in November 2017, Yu was appointed as the chief spokesperson[7] and served till the party was merged into Bareunmirae Party.
On 18 May 2017, 10 Bareun and Liberty Korea MPs including Yu proposed an amendment, which prohibits governmental researchers to be involved in politics, in order to reinforce political neutrality.[8] The proposed amendment includes the prohibition of endorsing any political party or its candidates.[8]
On 15 July 2019, Yu and Paek Seung-joo, Liberty Korea MP for Gumi 1st constituency, submitted a motion to the National Assembly to dismiss the Minister of National Defence, Jeong Kyeong-doo.[9]
On 1 December, Yu's Bareunmirae membership was suspended, as a member of the dissident group, Emergency Action for Change and Innovation.[10] The group, later renamed as New Conservative Party,[11] became a new political party, but was soon merged into the United Future Party (UFP; now People Power Party).
Yu is a son of Yu Kwang, a former Gyeonggi Provincial Assembly member[2] who died in 2017.[12]