← 1997 1996 1995 1998 in South Korea → 1999 2000 2001
Centuries:	20th 21st
Decades:	1970s 1980s 1990s 2000s 2010s
See also:	Other events in 1998 Years in South Korea Timeline of Korean history 1998 in North Korea

Events from the year 1998 in South Korea.

Incumbents

• President: Kim Young-sam (until 24 February), Kim Dae-jung (starting 24 February)
• Prime Minister: Goh Kun (until 3 March), Kim Jong-pil (starting 3 March)

Events

• July 12: North Korean Raider incident, one frogman found dead on a beach at Donghae on South Korea's east coast.
• June 22: 1998 Sokcho submarine incident
• August 5 Korean Air Flight 8702
• August 31: 1998 North Korean missile test
• 17/18 December: 1998 Yeosu submersible incident

Undated

• Gremiphyca genus is reinvestigated by Xiao et al.^[1]
• 1998 South Korea Flood is the 3rd deadliest in South Korean history.
• Mount Kumgang Tourist Region opened for tourists.^[2]

Births

• January 16 – Boo Seung-kwan, singer in boy group Seventeen
• January 25 – Cho Gue-sung, footballer
• January 26
  • Jung Chan-woo, singer in boy group iKon
  • Moonbin, member of boy group Astro (died 2023)
• February 5 – Hyunjoo, member of girl group April
• February 18 – Vernon, member of boy group Seventeen
• March 9 – Soojin, former member of girl group (G)I-dle
• May 6 – Hwanhee, singer in boy group UP10TION
• May 27 – Son Ju-yeon, member of girl group Cosmic Girls
• May 28 – Kim Dahyun, member of girl group Twice
• June 3 – SinB, member of girl group GFriend and VIVIZ
• August 10 – Jang Ye-eun, member of girl group CLC
• August 19 –Umji, member of girl group GFriend and VIVIZ
• August 26 – Jeon So-yeon, songwriter, record producer, singer, and rapper in girl group (G)I-dle
• October 25 - Lee Minho, member of boy group Stray Kids
• December 13 – Xiao, singer in boy group UP10TION