The Giants might have finally found a way to get a victory over the Cowboys.

The Cowboys’ interest in interviewing Giants defensive line coach Andre Patterson for a lateral move across the NFC East was rebuffed Tuesday, a source confirmed to The Post.

ESPN first reported that an interview request was denied, but the message might have been translated in more informal conversations before permission was sought.

Either way, inject a new subplot into the rivalry, which has seen 13 wins by the Cowboys in the past 14 meetings.

The interest comes as no surprise given that new Cowboys defensive coordinator Mike Zimmer employed Patterson for the length of his eight-year stay as Vikings head coach.

Patterson worked his way from defensive line coach to co-defensive coordinator to assistant head coach under Zimmer.

But the Giants weren’t about to let Patterson leave.

Certainly not after he helped develop tackle Dexter Lawrence into an All-Pro during their two seasons together.

The Giants told candidates throughout their defensive coordinator search that it was a strong preference to retain Patterson on staff, sources familiar with the process told The Post.

But Patterson was not under consideration for the play-calling job that went to Shane Bowen.