| Tourney Name: | A3 Champions Cup |
| Year: | 2006 |
| Country: | Japan |
| Dates: | 2 – 8 August |
| Confederations: | 1 |
| Num Teams: | 4 |
| Venues: | 1 |
| Cities: | 1 |
| Count: | 1 |
| Matches: | 6 |
| Goals: | 26 |
| Top Scorer: |  Lee Chun-Soo (Ulsan Hyundai, 6 goals) |
| Player: | Lee Chun-Soo (Ulsan Hyundai) |
| Prevseason: | 2005 |
| Nextseason: | 2007 |
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)| width=200 | Team | width=20 | width=20 | width=20 | width=20 | width=20 | width=20 | width=20 | width=20 | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Ulsan Hyundai Horang-i | 3 | 2 | 0 | 1 | 12 | 3 | +9 | 6 | |||||||||
| Gamba Osaka | 3 | 2 | 0 | 1 | 5 | 8 | −3 | 6 | |||||||||
| JEF United Ichihara Chiba | 3 | 1 | 1 | 1 | 5 | 6 | −1 | 4 | |||||||||
| Dalian Shide | 3 | 0 | 1 | 2 | 4 | 9 | −5 | 1 |
Round 1--------
Round 2--------
Round 3----
| width=30 abbr="Position" | Pos | Player | width=200 | Team | Goals |
|---|---|---|---|---|---|
| 1 | Lee Chun-Soo | Ulsan Hyundai Horang-i | 6 | ||
| 2 |  Leandrão | Ulsan Hyundai Horang-i | 3 | ||
| 3 | Zou Jie | Dalian Shide | 2 | ||
| Magno Alves | Gamba Osaka | ||||
| Seiichiro Maki | JEF United Ichihara Chiba | ||||
| Choi Sung-Kuk | Ulsan Hyundai Horang-i | ||||
| 7 | Wang Sheng | Dalian Shide | 1 | ||
| Zhu Ting | Dalian Shide | ||||
| Ryūji Bando | Gamba Osaka | ||||
| Yasuhito Endō | Gamba Osaka | ||||
| Satoshi Yamaguchi | Gamba Osaka | ||||
| Yuki Abe | JEF United Ichihara Chiba | ||||
| Koji Nakajima | JEF United Ichihara Chiba | ||||
| Naotake Hanyu | JEF United Ichihara Chiba | ||||
| Kim Young-Sam | Ulsan Hyundai Horang-i |