The 1986 All-Ireland Under-21 Hurling Championship was the 23rd staging of the All-Ireland Under-21 Hurling Championship since its establishment by the Gaelic Athletic Association in 1964.
Tipperary were the defending champions, however, they were beaten by Limerick in the Munster semi-final.
On 14 September 1986, Galway won the championship following a 0-14 to 2-5 defeat of Wexford in the All-Ireland final. This was their fourth All-Ireland title in the under-21 grade and their first in three championship seasons.
Results
Leinster Under-21 Hurling Championship
Quarter-finals
Semi-finals
Finals
Munster Under-21 Hurling Championship
Quarter-finals
Semi-finals
Final
All-Ireland Under-21 Hurling Championship
Semi-finals
Final
Championship statistics
Miscellaneous
Derry won the Ulster Championship for the first time in their history. Limerick won the Munster Championship for the first time in their history. The All-Ireland semi-final clash between Derry and Galway remains their only ever championship meeting.