NRL General Manager Officiating Tony Archer said Cecchin and Cummins had been the best referees through the Finals Series and deserved their place in the decider.
"They refereed as a combination in the Finals Series last year, including a Preliminary Final, and are a proven combination in big games," Archer said.
"The best officials will referee the grand final."
Cecchin refereed in the 2011 Grand Final, while Cummins will be officiating in his fourth decider.
The match officials for the 2016 NRL Grand Final are:
Lead Referee: Matt Cecchin
