Ulster Under-20 Hurling Championship

The Ulster U-21 Hurling Championship, or for sponsorship reasons the Erin Ulster Under-21 Hurling Championship, is an Under 21 hurling tournament between counties affiliated to Ulster. The winners of the Ulster championship go on to qualify for the All-Ireland Under-21 Hurling Championship. The most successful county to date are Antrim who have won the competition on 36 occasions.

The 2010 champions were Antrim who defeated Armagh by 0-21 to 0-16. . Antrim had won the 2009 title by beating Derry. In 2011, Antrim completed a three in a row of titles, beating Armagh.

Armagh, Cavan, Donegal, Fermanagh, Monaghan and Tyrone have never won an Under-21 hurling championship.

Roll of honour

 * Only three counties from Ulster have won the Under-21/Under-20 championship

List of finals
Notes:
 * Antrim only team entered
 * 1968 was a "B" Grade competition. Antrim represented Ulster in the All-Ireland Under-21 Hurling Championship.
 * The 2008 competition was organised on a league basis, with each team playing one another once. Therefore, there was no final, Derry clinched the Championship in their final league game against Down.