Mossy Quinn hit the net for St. Vincents in Navan to help the Dublin club to their first ever back-to-back Leinster titles.
Quinn hit 1-4 in total for Vins who opened up a 6 point gap over Offaly club Rhode at half-time in the final at Pairc Tailteann.
The Marino men finished off the job in the second-half running out 1-13 to 0-6 winners, successfully defending the title they won last year.
It puts the club second on the list of all-time provincial winners with 6 crowns, just one behind Portlaoise on 7.
St. Vincents now turn their attention to the All-Ireland club series which they won last March.
The defence of that title will continue next February when Tommy Conroy's charges will face Galway club Corofin in the semi-finals.
Manager Conroy spoke to 98FM Sport's Stephen Doyle after the game
