Reports from the French media suggest that the Qatari investors club are not only eyeing Ronaldo but even Real manager Jose Mourinho in a surprising double move.
Ronaldo, 27, had publicly admitted he was unhappy at Real after talks broke down over a new improved contract. Some reports also claimed that Ronaldo wanted to be the first player to earn £400,000-a-week and become the highest-paid footballer in the world.
Now, PSG, backed by their billions, can offer such an amount which could tempt the Portuguese superstar to move away from the Bernabeu.
Ronaldo's future in the Spanish capital is uncertain as super-rich clubs across Europe prepare to bid.
Meanwhile, PSG president Nasser El-Khelaifi has denied the statement on the club's Ronaldo signing intend.
"Cristiano Ronaldo is a Real Madrid player," El-Khelaifi said.
"I have not contacted his club, and no-one has contacted me about him," he added.