The domestic season began on 15 July with the first Scottish League Cup group stage matches, before the opening round of matches in the 2023–24 Scottish Premiership were played on 6 August.
Having won the Premiership, Celtic qualified for the Champions League and entered in the group stage.
Having won their group, Rangers received a bye to the last 16 of the Europa League.
[38] Having finished in third place of the Premiership, Aberdeen qualified for the Europa League and entered in the play-off round.
[28] Having lost in the Europa League play-off, Aberdeen dropped into the Europa Conference League and were drawn in Group G with Eintracht Frankfurt, PAOK Salonika and HJK Helsinki.