The Queensland derby refers to rugby league matches between National Rugby League (NRL) clubs, the Brisbane Broncos and North Queensland Cowboys, first contested in 1995. The rivalry features the two longest-serving Queensland based clubs in the ARL/Super League/NRL competitions. They have met 53 times since 1995, with Brisbane leading the head-to-head series 35–18; with two drawn matches. The derby is also known as the XXXX Derby, due to sponsorship from Castlemaine XXXX.