| Season: | 1990 |
| Winners: | Lucky-Goldstar Hwangso (2nd title) |
| Continentalcup1: | Asian Club Championship |
| Continentalcup1 Qualifiers: | Withdrew |
| Matches: | 90 |
| Total Goals: | 186 |
| Best Player: | Choi Jin-han |
| League Topscorer: | Yoon Sang-chul (12 goals) |
| Best Goalkeeper: | Yoo Dae-soon |
| Prevseason: | 1989 |
| Nextseason: | 1991 |
The 1990 Korean Professional Football League was the eighth season of K League since its establishment in 1983. The South Korean clubs relocated their hometowns from provinces to cities in this year. Daewoo Royals also hired Frank Engel, the first foreign manager in the league.
| Award | Winner | Club | |
|---|---|---|---|
| Most Valuable Player |  Choi Jin-han | Lucky-Goldstar Hwangso | |
| Top goalscorer | Yoon Sang-chul | Lucky-Goldstar Hwangso | |
| Top assist provider | Choi Dae-shik | Lucky-Goldstar Hwangso | |
| Rookie of the Year | Song Ju-seok | Hyundai Horang-i | |
| Manager of the Year | Ko Jae-wook | Lucky-Goldstar Hwangso | |
| Best Goalkeeper | Yoo Dae-soon | Yukong Elephants | |
| Fighting Spirit Award | Choi Tae-jin | Lucky-Goldstar Hwangso | |
| Exemplary Award | Lee Tae-ho | Daewoo Royals | |
| Best Referee | Gil Gi-cheol | — |