The Danish international is currently on-loan with Juventus, having fallen down the pecking order at the Emirates Stadium.
However, he is struggling to force his way into Antonio Conte’s plans in Turin, which may see his spell with the Serie A champions end later this season.
Spurs are currently low on striking options, with Jermain Defoe and Emmanuel Adebayor the only senior front-men in the squad, and Bendtner has refused the rule out a switch to White Hart Lane.
“History is filled with examples of players moving between rival clubs and I can’t rule out clubs due to where I might have been in the past.” He said.
“It might not be the best idea but if the project matches my ambitions I would have to be interested.
“I still have a great relationship with London, which is a city that I adore.
“I have a lot of friends in London and there are a lot of great clubs in London, so I wouldn’t rule out a return.”
Bendtner has failed to score in seven appearances for Juve, which has deterred the club from pursuing a permanent deal.