The knock-out stage of the 2014 AFC Champions League was played from 6 May to 1 November 2014.
A total of 16 teams competed in the knock-out stage.
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 28 May 2014, 16:00 UTC+8, at the AFC House in Kuala Lumpur, Malaysia.
[3] The "country protection" rule was not applied, so teams from the same association could be drawn into the same tie.
Western Sydney Wanderers won on away goals.