2011 K-League
The 2011 K League, officially known as Hyundai Oilbank K-League 2011, was the 29th season of the K League. It was sponsored by Hyundai Oilbank.
Regular season
League table
Championship playoffs
Final table
Awards
Best XI
Source:Attendance
Top matches
| Rank | Date | Home | Score | Away | Venue | Attendance | Matchday | Day of week |
| 1 | 6 March 2011 | FC Seoul | 0–2 | Suwon Samsung Bluewings | Seoul [World Cup Stadium] | 51,606 | Round 1 | Sunday |
| 2 | 3 October 2011 | Suwon Samsung Bluewings | 1–0 | FC Seoul | Suwon World Cup Stadium | 44,537 | Round 27 | Monday |
| 3 | 11 June 2011 | FC Seoul | 1–1 | Pohang Steelers | Seoul World Cup Stadium | 44,358 | Round 13 | Saturday |
| 4 | 23 October 2011 | FC Seoul | 3–1 | Seongnam Ilhwa Chunma | Seoul World Cup Stadium | 42,909 | Round 29 | Sunday |
| 5 | 7 May 2011 | Suwon Samsung Bluewings | 1–2 | Jeonnam Dragons | Suwon World Cup Stadium | 38,068 | Round 9 | Saturday |
| 6 | 5 March 2011 | Gwangju FC | 3–2 | Daegu FC | Gwangju World Cup Stadium | 36,241 | Round 1 | Saturday |
| 7 | 6 March 2011 | Ulsan Hyundai | 1–2 | Daejeon Citizen | Ulsan Munsu Football Stadium | 34,758 | Round 1 | Sunday |
| 8 | 18 September 2011 | FC Seoul | 2–1 | Busan IPark | Seoul World Cup Stadium | 33,663 | Round 25 | Sunday |
| 9 | 4 December 2011 | Jeonbuk Hyundai Motors | 2–1 | Ulsan Hyundai | Jeonju World Cup Stadium | 33,554 | Final 2nd leg | Sunday |
| 10 | 12 March 2011 | Daejeon Citizen | 1–1 | FC Seoul | Daejeon World Cup Stadium | 32,340 | Round 2 | Saturday |