1966 All-Ireland Under-21 Football Championship
The 1966 All-Ireland Under-21 Football Championship was the third staging of the All-Ireland Under-21 Football Championship since its establishment by the Gaelic Athletic Association in 1964.
Kildare entered the championship as the defending champions.
On 2 October 1966, Roscommon won the championship following a 2-10 to 1-12 defeat of Kildare in the All-Ireland final. This was their first All-Ireland title.Results
Semi-finals
FinalStatistics
Miscellaneous