Reports in England has claimed United were prepared to splash out £240million for the 23-year-old forward.
But Barcelona have revealed they are ready to hand Neymar a contract extension.
“Those are just rumours and what people write but there is nothing to it,” Barcelona president Josep Maria Bartomeu told Catalunya Radio.
“Neymar is happy at Barca. We don’t want Neymar to leave at all.
“He is a young player that has an international football projection above the norm. He has helped us a lot in our recent successes.
“In a few months’ time we will discuss his contract extension as he has three years left on his current deal.
“We want him to stay for many years, three, five, 10 or even 15 years more with us.”