The province lost last year's final after losing an URC semi final.
World player of the year Josh van der Flier is hoping the home crowd in Dublin can act as a 16th man for Leinster in Saturday's Champions Cup final against La Rochelle.
The decider is a repeat of last year's final which was won narrowly by Ronan O'Gara's men.
The Blues suffered a surprise defeat at the hands of Munster at the Aviva Stadium last time out in the URC semi-final.
Leinster haven't won the Champions Cup for five years and van der Flier knows the importance of strong support:
The province's outgoing senior coach Stuart Lancaster says the players need to forget about the Munster defeat as they prepare for Saturday's Heineken Champions Cup final against La Rochelle.
And Lancaster says complete focus is required for the game at the Aviva Stadium as Leinster bid to win the trophy for the first time since 2018:
Laois Can Improve Plenty - Enda Lyons
Top Six Chasing Athlone Welcome Cobh To Westmeath
Westmeath Staring Down The Barrell For Midlands Derby
Offaly's Minor Football Campaign Ends Meekly In Aughrim
Aoife O'Rourke Fighting For Silver Today
"You Have To Look At The Things You Can Control" - Lee Pearson
Turner Wins Another Major Championship Medal
Henshaw Still Supporting Buccaneers
Aoife O'Rourke Wins Another European Medal
Westmeath U20s Clinch Final Spot
Offaly Rider Dominates Mondello Masters Opening Rounds
Westmeath Under 20s Face Tough Test To Progress To Final
Nicole Turner Taking On Best Of Europe In Madeira
O'Rourke Sisters Fighting For More Major Medals Today
Words Fail Me - Offaly Manager Left Shocked At Loss To Laois
Westmeath Fight Back To Secure Championship Opening Draw Against Offaly
I Want The Blame To Fall On Me - Joe Fortune
Goal Of The Season Contender Secures Athlone First Away Win
Laois Enjoy Sun Kissed Comeback Victory Over Offaly