The former Gers boss is a big admirer of the Scottish international and could make a move if Ferguson did become available.
“I am sure everyone in Scotland knows by now what I think of Barry Ferguson – he’s still a top player,” Advocaat told the Scottish Daily Mail.
“Maybe he needs a fresh challenge elsewhere to give him new motivation. If he has been getting criticism in Scotland, then maybe he has been at Rangers too long.
“If I think I have a place for him here then he is the first one I will sign.”