The League of Ireland U19 Division is the under-19 division of the League of Ireland. The current division is the successor of earlier U21 and U20 divisions. Like the Premier Division and First Division, the U19 Division is currently sponsored by Airtricity and as a result it is also known as the SSE Airtricity U19 League. The earlier U21 and U20 divisions were sponsored by Eircom and as a result were referred to as the Eircom U21 League or the Eircom U20 League. The division is also sometimes referred to as the Dr Tony O'Neill League because the winners are awarded the Dr Tony O'Neill Cup. In 2016 Cork City became the first team to represent the division in the UEFA Youth League.

During the U21 and U20 eras teams playing in the division were divided into four regionalised groups, more or less corresponding to North and South Leinster, Munster and Connacht/Ulster. The top two teams from each group then qualified for the quarter-finals and the remainder of the competition was decided on a knock-out basis.^[2][15] Between 2011–12 and 2013–14 teams playing in the division were divided into the three groups. One of these groups, the Elite Division, was a national division. The remaining teams were divided into Southern and Northern divisions. During these three seasons the winners of the Elite Division were awarded the Dr Tony O'Neill Cup. The 2014–15 season saw the introduction of two regional divisions known as the Northern Elite Division and the Southern Elite Division and a play-off system was again used to decide the overall champions. The 2015 season featured three regional groups simply numbered one to three. The 2016 season saw the return of the Northern Elite Division and the Southern Elite Division format.^[20][23][24]

The main league championship trophy is named after Dr Tony O'Neill, the former general manager of University College Dublin A.F.C. O'Neill was a founding member of the Irish Universities Football Union, a former general secretary of the FAI and a member of various UEFA committees. He also served as Director of Sport at UCD and was credited with revitalising sport at the university following the introduction of a scholarship scheme.^[28][29][30] This competition should not be confused with the other Dr Tony O'Neill Cup, a national competition organised by the FAI for schools teams.^[31]

Source:^[1][3][20]

Notes

The Enda McGuill Memorial Cup is the division's league cup. It is named after Enda McGuill, a former chairman of Dundalk F.C. and a former president of the League of Ireland.^[38][39]

Notes

Source:^[1][3][20]

The vast majority of teams that have competed in the division have been the youth teams of League of Ireland clubs. The following clubs and representative teams have also competed without ever having entered a team in either the Premier Division or the First Division.

Source:^{[2][5][23][58][59]}