The Penrith Panthers is an Australian professional rugby league football team. The Panthers compete in the National rugby League (NRL) premiership, the top Rugby league football competition in Australasia.

Based in Penrith, New South Wales, 55 km west of the centre of Sydney and at the foot of the Blue Mountains, the Panthers were admitted to the New South Wales rugby League (NSWRL) competition in 1967, predecessor of the Australian Rugby League (ARL) and the current NRL competition.

Penrith struggled for almost twenty years before finally reaching their first finals series in 1985. Penrith achieved their first Grand Final appearance in 1990 but were beaten by the Canberra Raiders 18–14. The next year the Panthers met the Raiders again in the 1991 Grand Final, this time winning the game 19–12. The Panthers most recent premiership achievement was over the Sydney Roosters in the 2003 Grand Final where Penrith were considered 'under dogs' but came out on top with a 18-6 victory.