Blind, who can play at the back or in midfield, was a key member of the Holland side which reached the semi-finals of the World Cup under Louis van Gaal.
And United have repeatedly been linked with a move for the 24-year-old since van Gaal took charge at Old Trafford earlier this summer.
But Dutch newspaper De Telegraaf quote Ajax director of football Marc Overmars saying: "There's some rumblings around Daley, some clubs enquired, but there is no concrete offer. And with Manchester United, there is no contact at all."
And, according to Overmars, it will take a huge offer to prise Blind out of Amsterdam before next summer.
"We believe that we currently have a strong team and want Daley to stay for another year," he said. "Only if the absolute top price is paid is a transfer negotiable.
"Daley's management know how we feel at the moment. Next year we will have a much more lenient policy, we are willing to talk with Daley and we will settle for a reasonable price."