Dak Prescott is following Kim Kardashian's lead ... telling Oklahoma officials to immediately free death row inmate Julius Jones -- claiming he was wrongly convicted of murder and doesn't deserve to die.

The Dallas Cowboys QB spelled it all out in a powerful letter to Gov. Kevin Stitt and the Oklahoma Pardon and Parole Board.

"Please don't let another innocent black man die from the systemic mistreatment that has plagued our nation for far too long," Prescott wrote.

Jones was accused of murdering a white man during a carjacking in 1999 when he was just 19-years-old.