2005 in South Korean football
In 2005, the main football competitions in South Korea were the K League, won by Ulsan Hyundai FC; the Korean FA Cup, won by Jeonbuk Hyundai Motors FC; and the Korean League Cup, won by Suwon Samsung Bluewings. The South Korean team Busan IPark reached the semifinals of the AFC Champions League. The national team qualified for the 2006 FIFA World Cup by coming second in Group 1.
Honors
League competitions
K-League">2005 K-League">K-League
Regular season
Championship">2005 K-League Championship">Championship
K2 League">2005 K2 League">K2 League
First stage
Second stage
Championship Playoff
Cup competitions
Korean FA Cup">2005 Korean FA Cup">Korean FA Cup
Round 1
Round 2
Quarterfinal
Semifinal
Final
K-League Cup">2005 Korean League Cup">K-League Cup
Final standing
K2 League Championship
Group round
Knockout Round
International club competitions
[2005 [AFC Champions League|AFC Champions League]]
Group stage
Quarterfinals
Semifinals
A3 Champions Cup">2005 A3 Champions Cup">A3 Champions Cup
National teams
National team">Korea Republic national football team">National team
| Date | Venue | Opponents | Competition | South Korea scorer | |
| 15 Jan |  Los Angeles | 1–2 | Friendly | Chung Kyung-Ho | |
| 19 Jan | Los Angeles | 1–1 | Friendly | Kim Jin-Kyu | |
| 22 Jan | Los Angeles | Chung Kyung-Ho | |||
| 4 Feb |  Seoul | 0–1 | Friendly | ||
| 9 Feb | Seoul | 2–0 | WCQ | Lee Dong-Gook, Lee Young-Pyo | |
| 20 Mar |  Dubai | 1–0 | Friendly | Kim Sang-Sik | |
| 25 Mar |  Dammam | 0–2 | WCQ | ||
| 30 Mar | Seoul | 2–1 | WCQ | Lee Young-Pyo, Lee Dong-Gook | |
| 3 Jun |  Tashkent | 1–1 | WCQ | Park Chu-Young | |
| 8 Jun |  Kuwait City | 4–0 | WCQ | Park Chu-Young, Lee Dong-Gook, Chung Kyung-Ho, Park Ji-Sung | |
| 31 Jul | Daejeon | 1–1 | 2005 EAFF Championship | Kim Jin-Kyu | |
| 4 Aug | Jeonju | 0–0 | 2005 EAFF Championship | ||
| 7 Aug | Daegu | 0–1 | 2005 EAFF Championship | ||
| 17 Aug | Seoul | 0–1 | WCQ | ||
| 12 Oct | Seoul | 2–0 | Friendly | Cho Won-Hee, Kim Jin-Kyu | |
| 12 Nov | Seoul | 2–2 | Friendly | Ahn Jung-Hwan, Kim Young-chul | |
| 16 Nov | Seoul | 2–0 | Friendly | Choi Jin-Chul, Lee Dong-Gook |