Ooijer told the Dutch FA's official website: "My contract is due to expire next year and then I am a free agent at the end of the season.
"In principle, I am allowed to talk to other clubs from January. If it is up to me and my family, I will return to the Netherlands."
The experienced stopper arrived at Blackburn in 2006 from PSV, but is unsure who he will join when his Rovers deal runs out.
He added: "I have read that there is a lot of interest in me, but I really have got no idea yet which club I will eventually move to."