| Party: | Democratic |
| Birth Date: | 25 August 1996 |
| Office: | Secretary to the President for Youth affairs |
| Termstart: | 21 June 2021 |
| Termend: | 9 May 2022 |
| Termstart1: | 4 September 2020 |
| Termend1: | 8 April 2021 |
| Office1: | Member of the Supreme Council of the Democratic Party |
| Leader1: | Lee Nak-yon |
| Alma Mater: | Korea University |
| Office2: | Youth Spokesperson of the Democratic Party |
| Termstart2: | September 2019 |
| Termend2: | August 2020 |
| Successor2: | Cho Eun-joo |
| Leader2: | Lee Hae-chan |
| Alongside2: | Chang Jong-hwa |
| President: | Moon Jae-in |
| Predecessor: | Kim Kwang-jin |
Park Seong-min (; born 25 August 1996) is a South Korean politician who served as a secretary to President Moon Jae-in for youth affairs from 2021 to 2022.[1] At the age of 25 Park became the youngest person to assume secretary roles in Office of the President Moon.[2] She was previously the youngest person to form the Supreme Council of the ruling party under Lee Nak-yon leadership who served as Moon's first prime minister.[3]
Park was previously one of two youth spokespeople of her party appointed by then-party leader Lee Hae-chan through first-ever open competition for this post.[4] She also served as a member of University Students Committee of her party in 2018 and co-chair of youth policy committee of Yongin City in 2019.
Park is currently a Korea University undergraduate student with Korean language and literature major.[5]
If confirmed, she will be the youngest member of the Supreme Council, her party's highest decision-making committee. Unlike other members of the Council, Park will serve as its member as long as her nominator, Lee Nak-yon, serves as the party leader.[6] On 4 September 2020, her nomination was confirmed commencing her term as its Supreme Council member.[7]
From September 2020 Park chairs party's task force for youth affairs.[8] She also proposed creating "venue" for the party and youth can communicate regularly.[9]
Following the party's defeat in 2021 by-elections, all members of Supreme Council including Park resigned. In May 2020 Park joined Lee Nak-yon's de facto presidential campaign as its spokesperson.[10]