Doull, who recently signed on with British WorldTour squad Team Sky as a stagiaire for the remainder of the 2016 season before beginning a pro contract next year, will ride with the team that helped him to third place overall in the 2015 edition.
Both Wiggins, winner of the 2013 Tour of Britain, and Doull have recently returned from Rio de Janeiro where they took the gold medal for Great Britain in the team pursuit alongside Ed Clancy and Steven Burke.
They will be joined by world points race champion Jon Dibben in the Wiggins line-up, despite the 22-year-old also signing on as a trainee at WorldTour level, having ridden the Tour of Utah with Cannondale-Drapac at the start of August.
The three remaining riders in the Team Wiggins line-up for the Tour of Britain has yet to be confirmed.
"We are delighted to be welcoming two of our Olympic Champions to the Tour of Britain just three weeks after their success in Rio," said race director Mick Bennett.
"As a former winner of the Tour of Britain it is always a pleasure to welcome Sir Bradley Wiggins back to Britain's biggest race, while Owain Doull was the star of the 2015 Tour, showing he has a very bright future ahead of him.”
Big name stars like Mark Cavendish (Dimension Data), André Greipel (Lotto-Soudal) and Steve Cummings (Dimension Data) have all confirmed their attendance at the British race, with Bradley Wiggins now joining them in what will be his ninth edition.
The 2016 Tour of Britain kicks-off on Sunday, September 4 with a stage beginning in Glasgow. The race will finish a week later with it's traditional conclusion in central London.
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