The 1990 All-Ireland Under-21 Football Championship was the 27th staging of the competition since its inception by the Gaelic Athletic Association in 1964.
Cork entered the championship as the defending champions, but were defeated by Kerry in the Munster final.
On 13 May 1990, Kerry won the championship following a 5–12 to 2–11 defeat of Tyrone in the All-Ireland final.[1] This was their sixth All-Ireland title overall and their first in 13 championship seasons.
Semi-finals
Final