2015 AFC Cup knockout stage
The 2015 AFC Cup knockout stage was played from 26 May to 31 October 2015. A total of 16 teams competed in the knockout stage to decide the champions of the 2015 AFC Cup.
Qualified teams
The winners and runners-up of each of the eight groups in the group stage qualified for the knockout stage. Both West Zone and East Zone had eight teams qualified.| Zone | Group | Winners | Runners-up |
| West Zone | A | ![]() FormatIn the knockout stage, the 16 teams played a single-elimination tournament. In the quarter-finals and semi-finals, each tie was played on a home-and-away two-legged basis, while in the round of 16 and final, each tie was played as a single match. The away goals rule, extra time and penalty shoot-out were used to decide the winner if necessary.ScheduleThe schedule of each round was as follows.BracketIn the round of 16, the winners of one group played the runners-up of another group in the same zone, with the group winners hosting the match. The matchups were determined as follows:;West Zone
In the semi-finals, the matchups were determined by the quarter-final draw: Winner QF1 vs. Winner QF2 and Winner QF3 vs. Winner QF4, with winners QF2 and QF4 hosting the second leg. In the final, the host team was determined by a draw, held after the quarter-final draw. Round of 16!colspan=3|West Zone !colspan=3|East Zone Quarter-finalsFirst leg-------- ---- Second legJohor Darul Ta'zim won 4–2 on aggregate.---- Al-Qadsia won 3–2 on aggregate. ---- Al-Kuwait won 7–1 on aggregate. ---- Istiklol won 5–3 on aggregate. ;Notes Semi-finalsFirst leg----Second legOn 16 October 2015, the Kuwait Football Association was suspended by FIFA. As a result, both Al-Qadsia and Al-Kuwait were no longer eligible to compete in the AFC Cup. The second legs of both semi-finals were cancelled, and Johor Darul Ta'zim and Istiklol advanced to the final by walkover.---- |
