Carlos Quinteros (nom de guerre: Miguel) was a Guatemalan communist.
Quinteros was a member of the Guatemalan Party of Labour (PGT).
When PGT split in 1978 he became a leading figure in the more militant PGT-NDN break-away group.
He soon turned into a collaborator and started providing information about his former comrades in PGT, PGT-NDN, PGT-PC.
PGT-PC was essentially wiped out in this process and PGT-NDN was reduced to the party leader and closest associates in exile.