1965 All-Ireland Under-21 Football Championship
| Championship details | |
|---|---|
| All-Ireland Champions | |
| Winning team | Kildare (1st win) |
| Captain | Pat Dunny |
| All-Ireland Finalists | |
| Losing team | Cork |
| Provincial Champions | |
| Munster | Cork |
| Leinster | Kildare |
| Ulster | Down |
| Connacht | Galway |
The 1965 All-Ireland Under-21 Football Championship was the second staging of the All-Ireland Under-21 Football Championship since its establishment by the Gaelic Athletic Association in 1964.
Kerry were the defending champions from the previous championship, however, they did not field a team.
On 3 October 1965, Kildare won the championship following a 2-11 to 1-7 defeat of Cork in the All-Ireland final. This was their first All-Ireland title.