| Country: | South Korea |
| Season: | 2009 |
| Division1: | K League |
| Champions1: | Jeonbuk Hyundai Motors |
| Division2: | National League |
| Champions2: | Gangneung City |
| Division3: | K3 League |
| Champions3: | Pocheon Citizen |
| Domestic: | Korean FA Cup |
| Dchampions: | Suwon Samsung Bluewings |
| Leaguecup: | Korean League Cup |
| Lchampions: | Pohang Steelers |
| Wdivision1: | WK League |
| Wchampions1: | Daekyo Kangaroos |
| Prevseason: | 2008 |
| Nextseason: | 2010 |
| Flagicon: | yes |
This article shows a summary of the 2009 football season in South Korea.
See main article: South Korea national football team results (2000–2009).
See main article: South Korea national under-23 football team results (2000–2009).
See also: 2010 FIFA World Cup qualification – AFC fourth round.
See main article: 2009 K League.
See main article: 2009 K League Championship.
See main article: 2009 Korea National League.
See main article: 2009 K3 League.
See main article: 2009 WK-League.
See main article: 2009 Korean FA Cup.
See main article: 2009 Korean League Cup.
See main article: 2009 Korea National League Championship.
See main article: South Korean football clubs in the AFC Champions League.
| Team | Result | Round | Aggregate | Score | Venue | Opponent |
|---|---|---|---|---|---|---|
| FC Seoul | Quarter-finals | Group F | Runners-up | 4–2 | Away |  Sriwijaya |
| 5–1 | Home | |||||
| 2–4 | Home |  Gamba Osaka | ||||
| 2–1 | Away | |||||
| 0–2 | Away |  Shandong Luneng | ||||
| 1–1 | Home | |||||
| Round of 16 | 2–2 | 2–2 | — | Kashima Antlers | ||
| Quarter-finals | 3–4 | 2–3 | Away |  Umm-Salal | ||
| 1–1 | Home | |||||
| Pohang Steelers | Champions | Group H | Winners | 0–0 | Away |  Central Coast Mariners |
| 3–2 | Home | |||||
| 1–1 | Home | Kawasaki Frontale | ||||
| 2–0 | Away | |||||
| 1–0 | Home | Tianjin TEDA | ||||
| 0–0 | Away | |||||
| Round of 16 | 6–0 | 6–0 | — | Newcastle Jets | ||
| Quarter-finals | 5–4 | 1–3 | Away |  Bunyodkor | ||
| 4–1 | Home | |||||
| Semi-finals | 4–1 | 2–0 | Home | Umm-Salal | ||
| 2–1 | Away | |||||
| Final | 2–1 | 2–1 | — | Al-Ittihad | ||
| Suwon Samsung Bluewings | Round of 16 | Group G | Runners-up | 4–1 | Home | Kashima Antlers |
| 0–3 | Away | |||||
| 2–0 | Away | Singapore Armed Forces | ||||
| 3–1 | Home | |||||
| 1–2 | Away | Shanghai Shenhua | ||||
| 2–1 | Home | |||||
| Round of 16 | 1–2 | 1–2 | — | Nagoya Grampus | ||
| Ulsan Hyundai | Group stage | Group E | Third place | 1–3 | Home | Nagoya Grampus |
| 1–4 | Away | |||||
| 0–2 | Away | Newcastle Jets | ||||
| 0–1 | Home | |||||
| 1–0 | Home | Beijing Guoan | ||||
| 1–0 | Away |
See also: 2009 FIFA Club World Cup.
| Team | Result | Round | Score | Opponent |
|---|---|---|---|---|
| Pohang Steelers | Third place | Quarter-finals | 2–1 | TP Mazembe |
| Semi-finals | 1–2 |  Estudiantes | ||
| Third place match | 1–1 |  Atlante |