| Season: | 2012 |
| Competition: | R League |
| Dates: | 29 March – 10 September 2012 |
| Winners: | Group A: Korean Police Group B: Busan IPark |
| League Topscorer: | Kim Young-hoo (11 goals)[1] |
| Prevseason: | 2011 |
| Nextseason: | 2016 |
The 2012 R League was the 14th season of the R League.
| width=20 | Pos | width=190 | Team | width=30 abbr="Played" | Pld | width=20 abbr="Won" | W | width=20 abbr="Draw" | D | width=20 abbr="Lost" | L | width=25 abbr="Goals for" | GF | width=25 abbr="Goals against" | GA | width=25 abbr="Goal difference" | GD | width=30 abbr="Points" | Pts |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Korean Police (C) | 15 | 11 | 1 | 3 | 44 | 18 | +26 | 34 | ||||||||||
| 2 | Incheon United | 15 | 11 | 0 | 4 | 38 | 21 | +17 | 33 | ||||||||||
| 3 | Seongnam Ilhwa Chunma | 15 | 11 | 0 | 4 | 30 | 23 | +7 | 33 | ||||||||||
| 4 | Gangwon FC | 15 | 3 | 3 | 9 | 16 | 30 | –14 | 12 | ||||||||||
| 5 | FC Seoul | 15 | 3 | 3 | 9 | 17 | 32 | –15 | 12 | ||||||||||
| 6 | Suwon Samsung Bluewings | 15 | 2 | 1 | 12 | 21 | 44 | –23 | 7 |
| width=20 | Pos | width=190 | Team | width=30 abbr="Played" | Pld | width=20 abbr="Won" | W | width=20 abbr="Draw" | D | width=20 abbr="Lost" | L | width=25 abbr="Goals for" | GF | width=25 abbr="Goals against" | GA | width=25 abbr="Goal difference" | GD | width=30 abbr="Points" | Pts |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Busan IPark (C) | 12 | 6 | 5 | 1 | 27 | 12 | +15 | 23 | ||||||||||
| 2 | Ulsan Hyundai | 12 | 5 | 3 | 4 | 26 | 20 | +6 | 18 | ||||||||||
| 3 | Gyeongnam FC | 12 | 5 | 3 | 4 | 25 | 20 | +5 | 18 | ||||||||||
| 4 | Sangju Sangmu Phoenix | 12 | 4 | 2 | 6 | 16 | 30 | -14 | 14 | ||||||||||
| 5 | Pohang Steelers | 12 | 1 | 5 | 6 | 16 | 28 | –12 | 8 |