Devlin succeeds David Davies, who stood down from his postion following a recent boardroom shake-up.
Bill Power, Rangers' new Chairman, welcomed the appointment. He said: “I would like to welcome Mark to Loftus Road and to place on record my thanks to Swindon Town Football Club for allowing us the opportunity to talk with him.
"Mark is an excellent Chief Executive and a good Rangers man - with a son called Stan, what else could you expect! I'm really looking forward to working with him and I am certain that we have the right man in place to help this great club move forward.”
Devlin previously worked at Loftus Road as Commercial & Marketing Director before taking up his role at Swindon Town and he is expected to join Queens Park Rangers on August 2nd. He is a self confessed Rangers fan and is looking forward to returning to the club. He said:
“I am delighted to have accepted the opportunity to become the Chief Executive of QPR and I look forward to working with the new board of directors.
"As a supporter and previous Season Ticket Holder at Rangers, the club means a great deal to me and I can’t wait to get started on the challenges that lie ahead.
"I have enjoyed my two years at Swindon Town immensely, and I believe that I have left the club in much better shape than when I first started.
"I would like to thank everyone connected at Swindon for their support during my time at the club and I really hope that they can achieve promotion next season”.
Devlin's appointment is another great step in the new regime that sees a massive boardroom shake-up at Loftus Road in time for the new season.