2006 A3 Champions Cup
|Dates||2 – 8 August|
|Teams||4 (from 1 confederation)|
|Venue(s)||1 (in 1 host city)|
|Champions||Ulsan Hyundai Horang-i (1st title)|
|Third place||JEF United|
|Fourth place||Dalian Shide|
|Goals scored||26 (4.33 per match)|
|Attendance||70,950 (11,825 per match)|
|Top scorer(s)|| Lee Chun-Soo |
(Ulsan Hyundai, 6 goals)
|Best player(s)|| Lee Chun-Soo |
The fourth edition of the A3 Champions Cup took place in Tokyo, Japan, between 2 and 8 August 2006. It was won by Korean team Ulsan Hyundai Horang-i, who came back strongly from their defeat in the opening match to win the following two by margins of 6–0 and 4–0. It was the third time a Korean team has won this competition.
- Dalian Shide - 2005 Chinese Super League Champions
- Gamba Osaka - 2005 J. League Champions
- JEF United Chiba - 2005 Yamazaki Nabisco Cup Winners (invited)
- Ulsan Hyundai Horang-i - 2005 K-League Champions
|Ulsan Hyundai Horang-i||3||2||0||1||12||3||+9||6|
|JEF United Ichihara Chiba||3||1||1||1||5||6||−1||4|
|Gamba Osaka||3 – 2||Dalian Shide|
Magno Alves 18', 53'
|Zou Jie 57'
Wang Sheng 71'
|Ulsan Hyundai Horang-i||2 – 3||JEF United Ichihara Chiba|
|Choi Sung-Kuk 24'
Lee Chun-Soo 42'
|Ulsan Hyundai Horang-i||6 – 0||Gamba Osaka|
|Kim Young-Sam 24'
Leandrão 34', 83'
Lee Chun-Soo 46', 74', 85'
|JEF United Ichihara Chiba||2 – 2||Dalian Shide|
|Abe 53' (pen.)
|Zou Jie 30'
Zhu Ting 57'
|Dalian Shide||0 – 4||Ulsan Hyundai Horang-i|
|Lee Chun-Soo 34', 72'
Choi Sung-Kuk 48'
|Gamba Osaka||2 – 0||JEF United Ichihara Chiba|
|A3 Champions Cup 2006 Winners|
Ulsan Hyundai Horang-i
|Top Goalscorers||Most Valuable Player|
|Lee Chun-Soo (Ulsan)||Lee Chun-Soo (Ulsan)|
- A3 Champions Cup (Tokyo) 2006, from RSSSF