US TV
The star, who has been linked to Benji Madden, will leave at the end of the fifth season and will work on a new project - following her personal and professional life - with Mark Burnett Productions.
"We are truly pleased to have the chance to work with Audrina," Burnett said. "She has already proved her star quality, and we can't wait to show her fans worldwide the next stage of her life and career."
Patridge's exit follows the recent announcement that The Hills lead star Lauren Conrad is to leave the show.
Despite losing two of its biggest names, MTV dismissed speculation that The Hills will end.
"We cannot confirm a sixth season at this time," said an MTV spokesperson. "However, The Hills will continue as long as there are stories to tell, and as of now we don't see an end in sight."
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2012-13 Season
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'American Idol' grabs 18.6m for FoxAmerican Idol leads Fox to an easy Wednesday night primetime victory.
