| Tourney Name: | Asian Club Championship |
| Year: | 1999–2000 |
| Dates: | 15 August 1999 – 22 April 2000 |
| Num Teams: | 28 |
| Champion Other: | Al-Hilal |
| Count: | 2 |
| Second Other: |  Júbilo Iwata |
| Third Other: |  Persepolis |
| Matches: | 44 |
| Goals: | 151 |
| Player: |  Sérgio Ricardo[1] |
| Prevseason: | 1998–99 |
| Nextseason: | 2000–01 |
The 1999–2000 Asian Club Championship was the 19th edition of the annual international club football competition held in the AFC region (Asia). It determined that year's club champion of association football in Asia.
Al-Hilal of Saudi Arabia won the final and became Asian champions for the second time, beating Júbilo Iwata 3–2 in the final.
|}1 Al-Qadisiya withdrew.
|}1 Dalian Wanda withdrew.
2 Happy Valley withdrew.
3 Valencia had been drawn against the champions of Nepal, but the Nepalese FA did not send a team.
|}
|}1 The match was played over one leg by mutual agreement.
2 The first leg was cancelled due to the condition of the pitch at Valencia's home ground.
| Team | Pld | W | D | L | GF | GA | GD | Pts | |
|---|---|---|---|---|---|---|---|---|---|
| Al-Hilal | 3 | 2 | 1 | 0 | 3 | 0 | +3 | 7 | |
| Persepolis | 3 | 1 | 2 | 0 | 1 | 0 | +1 | 5 | |
 Al-Shorta | 3 | 1 | 1 | 1 | 3 | 3 | 0 | 4 | |
 FC Irtysh | 3 | 0 | 0 | 3 | 2 | 6 | -4 | 0 |
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| Team | Pld | W | D | L | GF | GA | GD | Pts | |
|---|---|---|---|---|---|---|---|---|---|
| Júbilo Iwata | 3 | 3 | 0 | 0 | 4 | 0 | +4 | 9 | |
 Suwon Samsung Bluewings | 3 | 1 | 1 | 1 | 5 | 2 | +3 | 4 | |
| Kashima Antlers | 3 | 1 | 1 | 1 | 4 | 2 | +2 | 4 | |
 Sinthana | 3 | 0 | 0 | 3 | 0 | 9 | -9 | 0 |
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