The 21-year-old Brazil star joined the Blaugrana in the summer from Santos and has already found the back of the net for his new club, having scored in the first leg of Barca's Spanish Super Cup clash with Atletico Madrid.
And Ronaldo feels Neymar will flourish at Camp Nou, but stated he is not yet at the same level as Messi or Cristiano Ronaldo.
“I think we are going to continue talking about Messi and Cristiano, because with Neymar we will have to wait," he told Europa Press.
“He is a young player, but he will learn and will become one of the best too.
"Neymar will learn a lot with Barca, with Messi, with European football and it comes in handy for there to be lots of Brazilians playing in Europe.
“And, although it will be difficult at first, in the long run for Neymar it will be very good.”
Barca spent 54 million euros to secure the services of Neymar from Santos back in June.