The 21-year-old is perhaps South America's hottest property, and has been linked with big-money moves to Barcelona, Real Madrid and Manchester City.
However, Ribeiro has stressed that the striker is going nowhere.
"I anticipate my answer to any bids that might come - the answer is no," said the 70-year-old. "Neymar will stay at Santos until 2014, and I hope that he'll continue here for even longer.
"I have a very clear base to why Neymar stayed here, resisting offers from the Spanish clubs (Barcelona and Real Madrid, in 2011), for one basic reason - he's happy.
"He costs us a relatively modest amount of money, given his talent. His presence translates into intangible gains, like our fan base growing 20% in the last two years."
Neymar started for Brazil against England on Wednesday.