Another notable rivalry is with fellow debutants from 1988, the Newcastle Knights. From the omission of the Gold Coast Chargers at the end of the 1998 season until the arrival of the Gold Coast Titans in the 2007 season, the Knights were geographically the closest club to the Broncos. Adding to this, players from both Brisbane and Newcastle have featured heavily in the annual State of Origin sides for Queensland and New South Wales respectively.
Since the 2006 Grand Final where Brisbane etched out Melbourne in a thriller, a rivalry still continues today between the two clubs. Adding to this, both Brisbane and Melbourne usually feature heavily in Queensland's annual State of Origin side.
The rivalry remains due to the fact that the Titans are geographically the closest club to the Broncos. Brisbane previously enjoyed the rivalry with the Gold Coast Chargers, until the Chargers exited the competition at the end of 1998 season, returning as the Gold Coast Titans in 2007.
The Brisbane Broncos have five split feeder clubs from the Queensland Cup (Redcliffe Dolphins, Ipswich Jets, Northern Suburbs Devils, Souths Logan Magpies and Wynnum-Manly Seagulls, making the Broncos the only club with more than three affiliated feeder clubs. Former feeder clubs of the Broncos were Aspley Broncos and Toowoomba Clydesdales and Burleigh Bears, who switched to the Gold Coast Titans.
The Broncos' victory song, "We're The Broncos":
We’re the Broncos
The mighty Broncos
We keep fighting every second till the end
The greatest team on earth
We’re the heart of all Queensland
We never rest
On and on we beat the best
Never giving up we bleed maroon and gold
For the league
We risk it all
On and on we beat the best<
We’re standing tall
We’re the finest and the greatest club of all