The 24-year-old, who is comfortable playing at left-back or in defensive midfield, impressed in the Eredivisie with Ajax last season, while also shining at this summer's World Cup.
"At the moment there is nothing concrete," Blind's agent, Rob Jansen, told Dutch publication Voetbal International when asked specifically about the link to Barca. "But the rumours of today could very well be tomorrow's reality.
"There are many clubs interested in Daley. We'll have to wait and see what happens when the transfer market shakes up."
Blind has two years remaining on his current Ajax deal.