Chris Robshaw has signed a contract extension to keep him at the Harlequins until the end of the 2015/16 season.
The back row forward, who has proved key in the club's recent success and proven himself at international level, will continue as captain for the forthcoming season.
Robshaw captained the national side on 16 occasions since the 2012 Six Nations, including the side's victory over the All Blacks at Twickenham last season.
The 27-year-old, since being named captain in 2010, has led the club to become both Aviva Premiership Champions and Amlin Challenge Cup winners.
Harlequins Director of Rugby Conor O'Shea said: "I think it would be an understatement to say that this is great news for the club and all of its supporters.
"Chris is not just an incredible rugby player, he is and has proven to be, one of the great leaders of the modern game.
"In appointing him as captain again for the forthcoming season and given his commitment to extending his stay at his club through until the end of the 2015/16 season we know we have a player and person who will do everything he can to lead this club to the success and levels we all crave.
"Chris leads on and off the pitch in a manner which is beyond question. I know his motivation for success with both Harlequins and England burns greater than ever."
Robshaw added: "I am honoured to have committed to Harlequins to the end of the 2015/16 season. It's a fantastic club with huge aspirations, which I am excited to be a part of.
"I have learnt so much in my time here and continue to do so from all the people around me, including the coaches and players.
"I am really looking forward to kicking off this season and winning more silverware with this great club."