| Competition: | Reserve League |
| Season: | 2008 |
| Winners: | Group A: Seongnam Ilhwa Chunma Group B: Gyeongnam FC Championship: Incheon United |
| Best Player: | Kang Soo-il[1] |
| League Topscorer: | Yoo Chang-hyun (13 goals)[2] |
| Prevseason: | 2007 |
| Nextseason: | 2009 |
The 2008 Korean Professional Football Reserve League was the tenth season of the R League. Incheon United won the national title after defeating Pohang Steelers in the Championship final.
| width=20 | Pos | width=230 | Team | width=30 abbr="Played" | Pld | width=30 abbr="Won" | W | width=30 abbr="Draw" | D | width=30 abbr="Lost" | L | width=35 abbr="Goals for" | GF | width=35 abbr="Goals against" | GA | width=35 abbr="Goal difference" | GD | width=40 abbr="Points" | Pts | Qualification |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Seongnam Ilhwa Chunma (C) | 18 | 13 | 3 | 2 | 34 | 20 | +14 | 42 | Qualification for the Championship | ||||||||||
| 2 | Incheon United | 18 | 11 | 0 | 7 | 35 | 23 | +12 | 33 | |||||||||||
| 3 | Jeonbuk Hyundai Motors | 18 | 10 | 2 | 6 | 34 | 24 | +10 | 32 | |||||||||||
| 4 | Daejeon Citizen | 18 | 6 | 4 | 8 | 30 | 32 | -2 | 22 | |||||||||||
| 5 | FC Seoul | 18 | 6 | 4 | 8 | 30 | 37 | -7 | 22 | |||||||||||
| 6 | Suwon Samsung Bluewings | 18 | 4 | 3 | 11 | 23 | 37 | -14 | 15 | |||||||||||
| 7 | Korean Police | 18 | 3 | 4 | 11 | 20 | 33 | -13 | 13 |
| width=20 | Pos | width=230 | Team | width=30 abbr="Played" | Pld | width=30 abbr="Won" | W | width=30 abbr="Draw" | D | width=30 abbr="Lost" | L | width=35 abbr="Goals for" | GF | width=35 abbr="Goals against" | GA | width=35 abbr="Goal difference" | GD | width=40 abbr="Points" | Pts | Qualification |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Gyeongnam FC (C) | 21 | 13 | 4 | 4 | 38 | 23 | +15 | 43 | Qualification for the Championship | ||||||||||
| 2 | Pohang Steelers | 21 | 13 | 2 | 6 | 45 | 32 | +13 | 41 | |||||||||||
| 3 | Busan IPark | 21 | 11 | 2 | 8 | 27 | 23 | +4 | 35 | |||||||||||
| 4 | Jeonnam Dragons | 21 | 10 | 3 | 8 | 36 | 23 | +13 | 33 | |||||||||||
| 5 | Jeju United | 21 | 9 | 6 | 6 | 23 | 21 | +2 | 33 | |||||||||||
| 6 | Gwangju Sangmu | 21 | 9 | 4 | 8 | 29 | 29 | 0 | 31 | |||||||||||
| 7 | Daegu FC | 21 | 3 | 3 | 15 | 16 | 42 | -26 | 12 | |||||||||||
| 8 | Ulsan Hyundai | 21 | 1 | 6 | 14 | 13 | 34 | -21 | 9 |
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----Incheon United won 4–2 on aggregate.