The Brazilian striker has long been linked with a move to England, with speculation suggesting he could move next summer.
His former Milan boss Carlo Ancelotti - now at Chelsea - is a confirmed fan, but the most recent reports have suggested that Roberto Mancini's Manchester City are ready to splash the cash on him/
But now Pato has insisted that he would target a move to Barcelona, if he did leave Milan.
"I am honoured by City's interest, but I am a Milan player and I'm happy here," Pato said.
"If one day I do leave Milan, I'd like to wear the Barcelona jersey. I think I'd only leave Milan for Barcelona."
Reports in Italy claim that Barcelona have already secured an option on Pato, as part of the deal that took Zlatan Ibrahimovic to Milan in the summer.
As much as I love FC Barcelona..for some reason I don't like when players say they would leave their club for another club, but then sometimes I don't care :/