The following lists events in the year 2025 in South Korea.

Office	Image	Name	Assumed office / Current length
President of the Republic of Korea		Yoon Suk Yeol	10 May 2022 (2 years ago) (2022-05-10) (Powers and duties suspended since 14 December 2024)
		Choi Sang-mok	27 December 2024 (2 months ago) (2024-12-27) (Acting President)
Speaker of the National Assembly		Woo Won-shik	5 June 2024 (9 months ago) (2024-06-05)
Chief Justice of the Supreme Court		Cho Hee-dae	8 December 2023 (14 months ago) (2023-12-08)
President of the Constitutional Court		Moon Hyungbae (Acting)	18 October 2024 (4 months ago) (2024-10-18)
Prime Minister of the Republic of Korea		Han Duck-soo	21 May 2022 (2 years ago) (2022-05-21) (suspended since 27 December)
		Choi Sang-mok	27 December 2024 (2 months ago) (2024-12-27) (Acting Prime Minister)

• 1 January – A day after Acting President Choi Sang-mok appointed two justices to the Constitutional Court, the chiefs of Office of the President, the policy office, the Office of National Security, the special adviser for foreign affairs and security, and the senior secretary express their intentions to resign to Choi.^[1]
• 3 January – Yoon Suk Yeol residence standoff: Investigators face a standoff with the Presidential Security Service outside the presidential residence after failing to execute a warrant to detain impeached President Yoon Suk Yeol for his failed martial law attempt.^[2]
• 4 January – A fishing boat sinks after hitting rocks off the coast of Gageodo, killing three people on board.^[3]
• 8 January – Former Democratic Party of Korea leader Song Young-gil is sentenced to two years' imprisonment for accepting illegal political funding from seven businesspeople.^[4]
• 10 January – Park Chong-jun resigns as head of the Presidential Security Service amid an investigation into the agency's role in obstructing President Yoon's arrest on 3 January.^[5]
• 14 January –
  • At least 43 vehicles figure in a pileup caused by icy conditions along the Seoul-Munsan Expressway near Goyang, injuring nine people.^[6]
  • The first formal hearings into the impeachment of Yoon Suk Yeol are held by the Constitutional Court of Korea.^[7]
• 15 January – Arrest of Yoon Suk Yeol: Yoon Suk Yeol becomes the first sitting president of South Korea to be arrested following his imposition of martial law in December.^[8]
• 17 January – South Korea opens an embassy in Cuba for the first time.^[9]
• 18 January – 2025 Seoul Western District Court riot: Supporters of Yoon Suk Yeol storm the Seoul Western District Court after the latter extends his detention.^[10]
• 21 January – A civilian employee of the Korea Defense Intelligence Command is sentenced by a court-martial to 20 years' imprisonment for providing information on undercover South Korean military agents to a suspected Chinese agent in return for 400 million won.^[11]
• 22 January – The government announces a reduction in subsidies to biomass enterprises and an end to supporting the construction of new biomass plants amid criticism over its impact on deforestation.^[12]
• 23 January –
  • The Constitutional Court votes 4-4 to reject the impeachment of Korea Communications Commission chair Lee Jin-sook, who had been impeached by the National Assembly on 2 August 2024 for administrative abuses.^[13]
  • Three people, including a Filipino-Canadian national, are arrested for processing and attempting to sell 61 kilograms of cocaine valued at 30 billion won ($24 million) from a warehouse in Hoengseong County, Gangwon Province, in what is described as the largest cocaine-related crime in South Korea.^[14]
  • The National Bio Committee, an advisory committee directly under the President, is launched.^[15]
• 26 January – Yoon Suk Yeol becomes the first sitting president of South Korea to be indicted following his imposition of martial law in December, with charges of insurrection and abuse of power being filed against him.^[16]
• 28 January – Air Busan Flight 391: An Airbus A321-200 operated by Air Busan catches fire before takeoff at Gimhae International Airport, resulting in seven injuries and the evacuation of all 176 people on board.^[17]

• 1 February –
  • Two fishing vessels run aground off the coast of Jeju Island, killing two people and leaving two others missing.^[18]
  • A fire breaks out at the National Hangeul Museum in Seoul, injuring one firefighter. No damage is recorded to the museum's collection.^[19]
• 4 February – The Seoul High Court overturns the conviction of former Ulsan mayor Song Cheol-ho and former city police chief Hwang Un-ha for election interference over a conspiracy to engineer an investigation against a rival during the 2018 South Korean local elections.^[20]
• 7–14 February – South Korea at the 2025 Asian Winter Games in Harbin, China:^[21] South Korea concludes its participation at the competition with 16 gold medals.^[22]
• 7 February – An magnitude 3.1 earthquake hits Yangseong-myeon, 22 kilometers northwest of Chungju, North Chungcheong Province.^[23]
• 9 February – A fishing vessel sinks off the coast of Habaek Island near Yeosu, killing four people and leaving five others missing.^[24]
• 10 February –
  • One person is killed in the explosion of an oil storage tank in Ulsan.^[25]
  • An eight-year old girl is fatally stabbed at an elementary school in Daejeon, with a teacher confessing to the killing.^[26]
• 12 February – A fishing vessel capsizes off the coast of Jeju Island, leaving five crew members missing.^[27]
• 13 February – A fishing vessel catches fire off the coast of Buan County, leaving six crew members missing.^[28]
• 14 February –
  • Footballer Hwang Ui-jo is sentenced to a one-year suspended prison sentence for secretly filming sexual encounters with three different women.^[29]
  • Six people are killed in a fire at an under-construction resort in Busan.^[30]
  • A man is arrested for attempting to storm the Chinese embassy in Seoul to carry out an attack.^[31]
• 16 February – Actress Kim Sae-ron is found dead in her home in Seoul in what police rule to be a suicide.^[32][33]
• 17 February – The government suspends the local service of the Chinese artificial intelligence application DeepSeek, citing data collection concerns.^[34]
• 19 February –
  • The first formal hearings into the impeachment of Han Duck-soo are held by the Constitutional Court of Korea.^[35]
  • The Seoul High Court approves the retrial of Korean Central Intelligence Agency director Kim Jae-gyu, who was convicted and executed for the assassination of Park Chung Hee in 1979.^[36]
  • Democratic Party MP Lee Sang-sik is issued with a 3-million won (US$2,084) fine by the Suwon District Court for making a false statement of his assets while campaigning for the 2024 South Korean legislative election.^[37]
  • Four officials of the Moon Jae-in administration, namely former national security adviser and Foreign Minister Chung Eui-yong; former presidential chief of staff Noh Young-min, former National Intelligence Service director Suh Hoon, and former Unification Minister Kim Yeon-chul are convicted and sentenced to suspended prison terms of up to ten months by the Seoul Central District Court over the forced repatriation of two North Korean fishermen who had killed 16 of their colleagues in the Sea of Japan in 2019.^[38]
• 20 February – The criminal trial of Yoon Suk Yeol over his martial law declaration begins in Seoul, making him the first incumbent president of South Korea to stand trial in a criminal case.^[39]
• 25 February –
  • A bridge being built as part of the Seoul-Sejong City expressway collapses in Anseong, killing four workers.^[40]
  • The Constitutional Court concludes its hearings into the impeachment of Yoon Suk Yeol.^[41]
• 26 February –
  • A man is shot dead by police in Gwangju after stabbing an officer.^[42]
  • Hyundai Rotem wins a 2.2 trillion-won (US$1.53 billion) contract to supply advanced trains to the Moroccan national railway operator ONCF.^[43]
• 27 February –
  • The Constitutional Court rules that acting President Choi Sang-mok's decision to withhold the appointment of Ma Eun-hyuk as a justice in the Constitutional Court violated the National Assembly's right to elect a justice to the court but dismisses a petition to have Ma appointed immediately.^[44]
  • The Ministry of Unification dismisses Cho Min-ho as president of the Korea Hana Foundation supporting North Korean defectors amid allegations of him sexually and verbally harassing employees.^[45]

• 6 March – Two KF-16 fighter aircraft of the Republic of Korea Air Force drop their ordnance by accident on a civilian area of Pocheon during a drill, injuring 29 people.^[46][47]

• 7–16 July – 2025 EAFF E-1 Football Championship^[48]
• July – 2025 EAFF E-1 Football Championship (women)^[49]
• November – APEC South Korea 2025

As per Presidential Decree No. 28394, 2017. 10. 17., partially amended, the following days are declared holidays in South Korea:^[50][51]

• 1 January – New Year's Day
• 27 January^[52] to 31 January – Korean New Year
• 1 March – March 1st Movement Day
• 5 May – Children's Day South Korea
• 5 May – Buddha's Birthday
• 6 June – Memorial Day
• 15 August – National Liberation Day
• 3 October – National Foundation Day
• 5 October to 7 October – Chuseok
• 9 October – Hangul Day
• 25 December – Christmas Day

• 2025 in South Korean music
• 2025 in South Korean television
• List of South Korean films of 2025
• List of 2025 box office number-one films in South Korea
• List of South Korean submissions for the Academy Award for Best International Feature Film

• 2 February – Lee Joo-sil, 80, film actress (The Uncanny Counter, Train to Busan, Squid Game)^[53]
• 7 February – Song Dae-kwan, 78, singer^[54]
• 16 February –
  • Kim Sae-ron, 24, actress (The Man from Nowhere, The Neighbor, Bloodhounds)^[55]
  • Gil Won-ok, 96, human rights activist and comfort woman.^[56]
• 24 February – Jeong Su-il, 90, North Korean-born spy and historian.^[57]

• Online calendar