The Brazil legend has revealed the former Barcelona coach would be his number one choice for the vacant positionRonaldo has tipped Pep Guardiola to replace Mano Menezes.
The Brazil coach was relieved of his duties on Friday following a largely disappointing period in charge of the national side, sparking speculation as to who his replacement could be.
And though Ronaldo does not agree with the sacking of Menezes, he says it is important to recruit a coach with the right characteristics - which could well be the former Barcelona man.
"Everybody gets impatient, but you always have to look at the bigger picture. I would not have made that decision myself, but Brazil needs to get back on track again," he told Globo.
"We have great coaches in Brazil, and we need someone who shows calmness towards the team.
"Guardiola is the best coach in the world right now. He did a very good job at Barcelona and would be a great choice for Brazil. We would have to see whether the fans would like him or not."