There's been reports of United being in advanced talks with Ajax to sign the youngster.
But after victory over NAC Breda yesterday, Kluivert insisted: "I have not spoken to Mourinho myself. Stories are always around, but what's true ... I know as much as you do. How much chance is there of me leaving? That opportunity is not very big. I really know nothing.
"I opened my phone this morning and saw all those crazy pictures."
He also told Voetbal Insider: "Pictures of myself with a flag next to it. Rumours, rumours ... They are always there, but Manchester United has never come up and I think that is not a logical step.
"First a few years of Ajax? Who knows. We will see."