The Brisbane Broncos, a professional rugby league club, have won six premierships in total. This includes two New South Wales Rugby League premierships, one Super League premiership, and three National Rugby League (NRL) premierships.
The Denver Broncos, a professional American football team, have won three Super Bowl championships, which can be considered equivalent to league premierships in the NFL. Their Super Bowl wins came in the 1997, 1998, and 2015 seasons.
To clarify:
- Brisbane Broncos (rugby league) have won six premierships.
- Denver Broncos (American football) have won three premierships (Super Bowls).
Please specify if the inquiry is about one or the other for a more focused answer.
