Whittingham, who has played over 300 games for Cardiff since joining from Aston Villa in 2007, has committed his future to the club until June 2017
"I spoke to the manager at the end of last season and he was keen to keep me here; as most people know, that was always what I wanted to do," Whittingham told the club’s website.
"I've loved my time at the club and hopefully this means that that time will continue for a few years yet.
"There have been highs and lows over the past eight years, of course. But in the main we've enjoyed good times and I've enjoyed myself here; last season was special is as much as we reached the Premier League – it's what I always said I wanted to achieve with Cardiff City.
"That dream happened - and although we were disappointed not to stay there, we know we are good enough to get back there and stay for some time. The incentive is there – it's about starting this season well and going from there.
"I think that those of us who played in the Premier League last year will be better for it this season. We all know how good a division it is and that we are capable at that level. It's looking promising for a quick return, taking into account the players we have, so we're looking forward to getting going.”