The 25-year-old has been linked to Liverpool, Manchester United, Arsenal and English champions Manchester City over the last few months.
Reports have claimed that Reus has a £20m buyout clause in his contract at the Bundesliga club, but the attacker has insisted that stories about his future are simply rumours.
The German released a statement saying: "At the moment there are a lot of people talking about my future. There is a lot of speculation and a lot is being written.
"So I would like to take this opportunity to say that other people are thinking more about my future than me."
Reus has been at Dortmund since 2012.