2003 AFL Under 18 Championships

The 2003 National AFL Under 18 Championships was the eighth edition of the AFL Under 18 Championships. Eight teams competed in the championships: Vic Metro, Vic Country, South Australia and Western Australia in Division 1, and New South Wales/Australian Capital Territory (NSW/ACT), Northern Territory, Queensland and Tasmania in Division 2. The competition was played over three rounds across two divisions. Vic Country and NSW/ACT were the Division 1 and Division 2 champions, respectively. The Michael Larke Medal (for the best player in Division 1) was awarded to Western Australia's Kepler Bradley, and the Hunter Harrison Medal (for the best player in Division 2) was won by Queensland's Jake Furfaro.