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, 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 was awarded to Western Australia's Kepler Bradley, and the Hunter Harrison Medal was won by Queensland's Jake Furfaro.Results
Division 1
Division 1 Ladder
| TEAM | WON | LOST |
| Vic Country | 2 | 1 |
| Vic Metro | 2 | 1 |
| South Australia | 1 | 2 |
| Western Australia | 1 | 2 |
Division 2
Division 2 Ladder
| TEAM | WON | LOST |
| NSW/ACT | 3 | 0 |
| Queensland | 2 | 1 |
| Northern Territory | 1 | 2 |
| Tasmania | 0 | 3 |
The 2003 Under 18 All-Australian team was named on 13 July 2003:
New South Wales/Australian Capital Territory: Shaun Daly, Nick Potter
Northern Territory: Tom Logan
Queensland: Jake Furfaro
South Australia: Adam Cooney, David Kellett, Brad Symes, Beau Waters, Josh Willoughby
Vic Country: Troy Chaplin, Ryley Dunn, Colin Sylvia, Kane Tenace, Andrew Walker
Victoria Metro: Eddie Betts, Ricky Dyson, Luke Herrington, Brock McLean, Brayden Shaw, Fergus Watts
Western Australia: Kepler Bradley, Farren Ray
Coach: Leon Harris
Assistant Coach: Rod Carter
