The following is a list of notable events and releases that happened in 1991 in music in South Korea.
| Date | Title | Artist | Genre(s) |
|---|---|---|---|
| 20 | Myself | Shin Hae-chul | Rock |
| The Wandering (방황) | Lee Seung-chul | Soft rock | |
| 30 | Kim Kwang-seok 2nd | Kim Kwang-seok | Folk rock |
| Date | Title | Artist | Genre(s) |
|---|---|---|---|
| 1 | Dreaming Park[3] | Sanulrim | Rock |
| Woman | Insooni | R&B | |
| Second Episode | 015B | R&B | |
| Date | Title | Artist | Genre(s) |
|---|---|---|---|
| 1 | The Wandering | Lee Seung-chul | Soft rock |
| 15 | Vol 1 always between you and I | Kim Jang-hoon | K-pop |
| 17 | Old Love | Lee Moon-sae | Korean ballad |
| Date | Title | Artist | Genre(s) |
|---|---|---|---|
| 1 | On the Turning Away | Yim Jae-beom | Rock |
| 30 | The Reason to Be With You[4] | Byun Jin-sub | K-pop |
| Slow Days | Lee Tzsche | Pop, Ballad | |