| Above: | 2011 AFL Under 18 Championships |
| Label1: | Teams |
| Data1: | 8 |
| Header2: | Division 1 |
| Label3: | Teams |
| Data3: | 4 |
| Label4: | Champions |
| Data4: | Vic Metro |
| Label5: | Larke Medal |
| Data5: | Stephen Coniglio |
| Header6: | Division 2 |
| Label7: | Teams |
| Data7: | 4 |
| Label8: | Champions |
| Data8: | Tasmania |
| Label9: | Hunter Harrison Medal |
| Data9: | John McKenzie |
The 2011 NAB AFL Under 18 Championships were the 16th 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. Vic Metro were the Division One champions and Tasmania were the Division Two champions. [1] [2] The Larke Medal (for the best player in Division 1) was awarded to Western Australia's Stephen Coniglio,[3] and the Hunter Harrison Medal (for the best player in Division 2) was won by Tasmania's John McKenzie.[4]
The format used for the 2011 championships differed slightly from the format used in 2009 and 2010. The two-division format used since 1992 was continued, with each team playing five matches: three against the opponents from their own division, and two from the other division. The cross-divisional matches were played in the first two rounds, and did not count for points or percentage.[5]
The 2011 Under 18 All-Australian team was named on 9 July 2011:[6] [7]