# Oh Se-hoon

Oh Se-hoon (Korean: 오세훈; born 4 January 1961) is a South Korean politician who has served as the mayor of Seoul since 2021. He also previously served as a member of the National Assembly from 2000 to 2004 and as mayor of Seoul from 2006 to 2011. A member of the People Power Party (PPP), Oh is a lawyer by profession.

## Personal history

Oh was born on 4 January 1961 in Seongdong District, Seoul. He graduated from Daeil High School and went on to study at Hankuk University of Foreign Studies. He then transferred, graduating from Korea University's School of Law. After passing the bar exam, he started practicing as an attorney. In 1994, he appeared on the MBC program Lawyer Oh and Lawyer Bae [ko] and gained popularity among the public.
He is Catholic and his baptismal name is Stephen.

## Political career

In 2000, Oh was elected as a member of the 16th National Assembly.

### Mayor of Seoul (2006–2011)

On 1 July 2006, Oh began his first term as the Mayor of Seoul. Oh was reelected to his second term in 2010 but resigned in 2011, partly due to the rejection of his proposal under the Seoul free lunch referendum.
During his tenure, Oh was involved with the Seoul Foundation for Arts and Culture, participating in a celebration video for the organization alongside foundation chairman Park Bum-Shin and Seoul Arts Director Ahn Eun-Mi.

### Post first mayoralty

In 2012, Oh spent time in London, United Kingdom as a fellow in the Faculty of Social Science & Public Policy at King's College London, focusing on major cities around the world and seeking ways to create jobs and help promote economic growth.
In the 2020 parliamentary election at the Gwang-jin district, he lost to Ko Min-jung, a political newcomer.

### Mayor of Seoul (2021–present)

In 2021, he won the People Power Party primaries to become the party candidate for the Seoul mayoral by-election. He later won the election, defeating Democratic Party nominee Park Young-sun with 57.5 percent of the votes.
He began his third term on 8 April 2021. In September 2023, Oh met with New York City mayor Eric Adams in Manhattan, to deepen the cultural and economic ties between Seoul and New York City. This was his first official trip representing Seoul on the sidelines of the United Nations General Assembly meeting.
Dongdaemun Design Plaza was constructed during his tenure.

### Seoul City Water Project

Although most Seoul residents choose to drink bottled mineral water, it has been reported that Oh Se-hoon not only vouches for, but drinks the city tap water. Encouraging Seoul residents to drink tap water and reduce dependence on bottled water, as well as publicizing the cleanliness of Seoul tap-water has been a pet project for Oh. Seoul City has recently put forward new regulations on tap-water and the focus has gone from not just safe water but water that tastes great.
From 2006 to 2011, Oh announced that he would make Seoul a city of water, and carried out the Han River Renaissance project to build riverside bike paths and Sebitseom floating islands on the southern bank of the Han by Banpo Bridge.
Because he had initiated so much water-related initiatives, when severe floods occurred in 2011, 2022 and 2023, he was criticized with a nickname of Oseidon, a combination of his name and Poseidon.

## Political positions
### LGBTQ rights

Oh stated he "personally can't agree with homosexuality".
When asked about the Seoul Queer Culture Festival during the 2021 Seoul mayoral race, Oh has stated: "In a broader spectrum, the principle is that the rights of minorities, including sexual minorities, must be protected and there should be no discrimination. I of course agree that discrimination must be prohibited. But I think the debate was on the queer festival being held in the central area near City Hall and Gwanghwamun Square, and the city of Seoul has a special committee to make a decision, and there are rules to that as well. This is an issue to be decided with usage rules of the City Hall square, and this is not something that a mayor can individually decide."
Oh in 2022 said Seoul may prohibit the Seoul Queer Parade from using the city hall plaza if participants "exhibit indecent materials or overexpose their bodies."
In 2024, the Seoul Queer Parade was denied permission to gather at Seoul Plaza. Municipal authorities cited a book related festival as reason for the denial.

### Nuclear weapons

Oh Se-hoon supports South Korea acquiring nuclear weapons in order to counter North Korea. In March 2023, during an interview with Reuters, he said that "we've come to a point where it is difficult to convince people with the logic that we should refrain from developing nuclear weapons and stick to the cause of denuclearisation".

### Diplomatic cable

In a leaked diplomatic cable, it was reported that in Oh's discussion with Alexander Vershbow in 2006 he stated that a merger between the Grand National Party and the Democratic Party would be beneficial to the GNP.

### Relations with President Yoon Suk Yeol

Despite being a member of the People Power Party of President Yoon Suk Yeol, Oh opposed Yoon's declaration of martial law on 3 December 2024.

## Electoral history

| Election | Year | Post | Party Affiliation | Votes | Percentage of votes | Results |
| 16th General Election | 2000 | Member of National Assembly from Seoul Gangnam District B | Hannara Party | 64,516 | 59.39% | Won |
| 4th Local Election | 2006 | Mayor of Seoul | Hannara Party | 2,409,760 | 61.05% | Won |
| 5th Local Election | 2010 | Mayor of Seoul | Hannara Party | 2,086,127 | 47.43% | Won |
| 20th General Election | 2016 | Member of National Assembly from Seoul Jongno District | Saenuri Party | 33,490 | 39.72% | Lost |
| 21st General Election | 2020 | Member of National Assembly from Seoul Gwangjin District B | United Future Party | 51,464 | 47.80% | Lost |
| By-election | 2021 | Mayor of Seoul | People Power Party | 2,798,778 | 57.50% | Won |
| 8th Local Election | 2022 | Mayor of Seoul | People Power Party | 2,608,277 | 59.05% | Won |

## Writings

* 가끔은 변호사도 울고싶다 (When a Lawyer Wants to Cry) by Oh Se-hoon (Myeongjin Publishing, October 1995) ISBN 89-7677-030-7
* 우리는 실패에서 희망을 본다 (Failure Offers Seeds of Hope) by Kang Won-taek, Kim Ho-ghi, Oh Se-hoon, and Lee Young-jo (Hwanggeumgaji Publishing, August 2005) ISBN 89-8273-930-0