The knockout stage of the 2015 CONCACAF Gold Cup began on 18 July 2015 and ended with the Final on 26 July 2015, to decide the champions of the 2015 CONCACAF Gold Cup.
A total of eight teams competed in the knockout stage.
[1] The top two placed teams from each of the three groups, plus the two best-placed third teams, qualified for the knockout stage.
The tournament bracket is shown below, with bold denoting the winners of each match.
Assistant referees: Warner Castro (Costa Rica) Leonel Leal (Costa Rica) Fourth official: Joel Aguilar (El Salvador)[2] Assistant referees: Alberto Morín (Mexico) Octavio Jara (Costa Rica) Fourth official: John Pitti (Panama)[3] Assistant referees: Hermenerito Leal (Guatemala) Juan Zumba (El Salvador) Fourth official: Óscar Moncada (Honduras)[4] Assistant referees: Eric Boria (United States) Charles Morgante (United States) Fourth official: David Gantar (Canada)[5] Assistant referees: Octavio Jara (Costa Rica) Warner Castro (Costa Rica) Fourth official: Henry Bejarano (Costa Rica)[6] Assistant referees: Philippe Brière (Canada) Daniel Belleau (Canada) Fourth official: Joel Aguilar (El Salvador)[7] Assistant referees: Garnet Page (Jamaica) Cristian Ramírez (Honduras) Fourth official: David Gantar (Canada)[8] Fifth official: Octavio Jara (Costa Rica)