1989 All-Ireland Under-21 Football Championship
| Championship details | |
|---|---|
| All-Ireland Champions | |
| Winning team | Cork (8th win) |
| Captain | Steven O'Brien |
| All-Ireland Finalists | |
| Losing team | Galway |
| Provincial Champions | |
| Munster | Cork |
| Leinster | Meath |
| Ulster | Antrim |
| Connacht | Galway |
The 1989 All-Ireland Under-21 Football Championship was the 26th staging of the All-Ireland Under-21 Football Championship since its establishment by the Gaelic Athletic Association in 1964.
Offaly entered the championship as defending champions, however, they were defeated by Kildare in a replay of the Leinster semi-final.
On 21 May 1989, Cork won the championship following a 2-8 to 1-10 defeat of Galway in the All-Ireland final. This was their eighth All-Ireland title overall and their first in three championship seasons.