The 33-year-old Ivory Coast striker has reportedly turned down a contract extension at Stamford Bridge, and his future is now the subject of much speculation.
And Redknapp, speaking ahead of his in-form side's Premier League clash with Bolton at White Hart Lane on Saturday, says he rates the talented front man highly.
"Drogba is a top player, a fantastic player, so, who knows? I couldn't sit here and say we wouldn't be interested," he said.
"Anyone would be interested in having Didier Drogba in their team but we have not made any enquiries."