The 1982 All-Ireland Under-21 Hurling Championship final was a hurling match that was played at St. Brendan's Park, Birr on 12 September 1982 to determine the winners of the 1982 All-Ireland Under-21 Hurling Championship, the 19th season of the All-Ireland Under-21 Hurling Championship, a tournament organised by the Gaelic Athletic Association for the champion teams of the four provinces of Ireland.

Having lost the senior All-Ireland decider to Kilkenny the previous week, Cork's under-21 team featured three players - Ger Cunningham, Kevin Hennessy and Tony O'Sullivan - who had played in that game.

The game hung in the balance throughout, with Cork coming from behind in the closing stages to win by a long-range Kevin Hennessy point.

The win gave them their eighth All-Ireland title overall and further secured their position as first on the all time roll of honour.

Galway's All-Ireland defeat was their second since last winning the title in 1978.