Kerry claimed the SFAI Kennedy Cup for the first time in their history amid jubilant scenes at the UL yesterday.
Dylan Murphy's strike just before the break ensured that a new name is on the trophy at the expense of the Dublin District Schoolboy League (DDSL), the defending champions.
The DDSL, who were aiming for their 13th title this century, had the lion's share of possession and created the most chances.
But the Kerry defence, which only conceded one goal in five games since Monday going into the final, and in which captain David Dineen, Paddy O'Rourke and goalkeeper Alex O'Connor were outstanding, held firm.
Murphy fired home off the underside of the bar from a Dylan O'Neill corner on the stroke of half-time, moments after James Clarke saw his long-range drive come back off the Kerry bar.
The DDSL continued to press forward after the break, but didn't create any clear-cut chances.
Clarke sent a low cross across the six-yard box and Kerry defender James Rusk hacked a Nathan Collins effort off the line. At the other end, Paul O'Shea fired wide.
Dineen also had a shot blocked down late on. The DDSL moved defender Ray O'Sullivan up front in the final five and he managed to get his head to a far-post cross.
But O'Connor plucked the ball out of the air to ensure that there is a new name on the Cup and the trophy will be remaining in Munster for the first time since Limerick District won it in 2000.
Kerry - O'Connor, Rusk, Dineen, O'Rourke inj (O'Shea 70+), D'Arcy Rogers 64), O'Shea, O'Sullivan (Ryan 70), O'Neill, Lenihan, Lyne, Murphy (Kelliher 68).
DDSL - Clarke, Madden, Ledwidge, O'Sullivan, Collins, Knight, Moylan (O'Reilly 40), Grant, Clarke (Troy 57), Thompson, McGrath (Devoy 63).
Ref - P O'Connor (Kilkenny).