The domestic season began on 26 July 2014, with the start of the Challenge Cup.

[1] The 2014–15 Scottish Professional Football League season commenced on 9 August, the weekend after the conclusion of the 2014 Commonwealth Games.

Celtic played their first two home European ties in 2014–15 at Murrayfield Stadium in Edinburgh because their normal home stadium, Celtic Park, was used for the opening ceremony of the 2014 Commonwealth Games.

[9] The result of the second game was annulled by UEFA because Legia had fielded a player who should have been serving a suspension.

[10] Celtic were instead given a 3–0 victory in the second leg, which meant that they won the tie on the away goals rule.