1991 in South Korea

Incumbents

• President: Roh Tae-woo
• Prime Minister: Ro Jai-bong, Chung Won-shik

  Events

• December 9 - SBS Television, a major television station of nationwide, a first officially regular broadcasting service to start.

  Births

• 3 January - Goo Hara, singer and actress
• 8 January - Shin Jimin, singer
• 8 February - WooHyun, singer
• 21 February - Solar, singer
• 26 February
• * CL, singer and rapper
• * Changsub, singer
• 3 March - Park Chorong, singer
• 8 March - Yoon Jisung, singer and actor
• 29 March - Irene, singer
• 16 April
• * Park Seung-a, field hockey player
• * Kim Seong-yeon, judoka
• 17 April - Jeong Bo-kyeong, joduka
• 2 May - Jeong Jinwoon, singer
• 3 May – Samuel Seo, South Korean musician
• 22 May - Suho, singer, songwriter, actor and model
• 6 June- Dongwoon, singer
• 15 June - Kim Jan-di, joduka
• 16 June - CNU, singer
• 21 June - Min, singer
• 28 June
• * Kang Min-hyuk, musician, singer-songwriter, and actor
• * Seohyun, singer and actress
• * Kang Minhyuk, singer and drummer
• 29 July - Sung Ji-hyun, badminton player
• 16 August
• * Kwon Rise, singer
• * Hoon, singer and actor
• 27 August - SungYeol, singer
• 14 September - Nana, singer and actor
• 15 September - Lee JungShin, singer
• 23 September - Key, singer, actor, fashion designer and television presenter
• 7 October- Nicole Jung, singer
• 18 November - Jung Jin-young, singer
• 2 December - Choi Minho, singer, rapper and actor
• 10 December - LE, rapper
• 17 December - Lee JaeJin, Bass vocalist
• 26 December - Seo Jung-eun, field hockey player