Disclosed are a guide catheter (8, 8) for a branched stent delivery system and the branched stent delivery system, the guide catheter (8, 8) being used for introducing guide wires (5, 6, 7) into corresponding cavities of a branched blood vessel in order that stent branches (10, 11, 12) of a branched stent (9) are subsequently dragged into their corresponding branched blood vessel cavities, characterized in that the guide catheter (8, 8) is provided with at least one guide wire channel extending axially for guiding the guide wires (5, 6, 7), in that each of the guide wire channels is provided with an inlet (a, b, c) and a corresponding outlet (d, e, f) for the guide wires, and in that the guide catheter (8, 8) is axially split between the inlet for the guide wire (a, b, c) and the outlet for the guide wire (d, e, f) of the respective guide wire channels to form incisions (30, 100, 100, 100"), via which the respective guide wires (5, 6, 7) can be separated from the guide catheter (8, 8).
