The USAFL National Championships is a tournament for Australian rules football in the United States.
Since 1997, the National Championships have been a large event featuring teams from the United States and Canada in four men's divisions and a women's division. The competition is organized and run by the United States Australian Football League.
The competition consists of four men's divisions and two women's divisions, each culminating in a Grand Final to decide the winner.
The first championships were held in Cincinnati in 1997, and they were won by the host Cincinnati Dockers. The Queen City would host the first three Nationals, with the 1998 edition welcoming 10 teams. A second division was created for the 1999 Nationals, with eight teams in the upper Division 1 and six in the lower Division 2 competition. Sixteen teams competed in one division in 2000. Divisional play returned for the 2001 championships, and a third division was added for 2002. A fourth division, mainly for reserves clubs and for first year teams, was added in 2007. A second women's division was added for 2015.
The 2015 edition saw the largest turnout in the history of the carnival; 45 teams representing 36 clubs across North America took part.
The Denver Bulldogs have been the most successful side at Nationals. Since 2000, the Bulldogs have appeared in ten Division 1 Grand Finals, winning eight, including four straight from 2002-2005. The San Diego Lions have appeared five times and have won two premierships. They are tied with the Boston Demons and Austin Crows for second most titles with two each.
Canadian clubs were first invited to the USAFL Championships in 2006. The first Canadian champions were the Vancouver Cougars in 2008. The Calgary Kangaroos appeared in three consecutive Division 2 Grand Finals from 2008-10, winning twice.