The 2015 AFC Champions League knockout stage was played from 19 May to 21 November 2015.
Each tie was played on a home-and-away two-legged basis.
The away goals rule, extra time (away goals do not apply in extra time) and penalty shoot-out were used to decide the winner if necessary.
The draw for the quarter-finals was held on 18 June 2015, 16:00 UTC+8, at the Grand Millennium Hotel in Kuala Lumpur, Malaysia.
[4] In the semi-finals, the matchups were determined by the quarter-final draw: Winner QF1 vs.
[4] In the final, the finalist from the West Zone hosted the first leg, while the finalist from the East Zone hosted the second leg (no draw was held to determine the order of legs, as it was reversed from the previous season's final).