They defeated Clane in St Conleth's Park 1-12 to 0-6.
Naas have been crowned champions of the Joe Mallon Motors SFC for the second year running.
Joe Murphy's side defeated Clane in St Conleth's Park 1-12 to 0-6, with some excellent performances from Alex Beirne, Tom Browne, Paddy McDermott, Darragh Kirwan amongst others, capping off a superb team performance.
Clane, to their credit, battled to the very end but Naas held firm and claimed victory.
Earlier, Raheens beat Naas in the MFC A Final.
Tomorrow morning's Kildare Today programme will look back at both games with analysis and interviews.

Wales Stun All Blacks To End 73-Year Wait For Victory
Ireland Face Must-Win Kosovo Clash After Narrow Defeat To Austria
Kildare Trio Feature As Ireland Overcome Fiji In Nations Championship
Kildare's Sean O'Haire Kicks Dramatic Last-Minute Winner In American College Football
Sunday Morning Sports Update
Milltown Through To Leinster Intermediate Semi-Finals After Victory Over Meath Champions
Sarsfields Leinster Championship Campaign Ends After Heavy Defeat To Cuala
More Than 20 Horses Withdrawn At Cheltenham Over Ground Conditions