Palace was looking for a new director following the Roy Hodgson leaves at the end of last season and seemed ready to appoint ex-Borussia Dortmund boss Lucien Favre until the end of the talks. They finally chose another ex-Pleasant boss at Vieira who signed for the next three seasons.
“I am really delighted to have this opportunity to come back to the Premier League and manage this great football club, as we start a new chapter together,” Vieira told the official club website.
“It’s a project that really appeals to me, having spoken a lot with the president and the sporting director about their ambition and their plans for the whole club, including the academy.
“The club have a fantastic foundation in place after many years in the Premier League, and I hope we can make further improvements and keep the club moving forward.
“I am also very happy to experience the atmosphere that the club’s supporters create in Selhurst Park and away, and I know how important this can be for the team.”
Former France midfielder Vieira began his executive career in 2016 when he took over at NYCFC and led them to their very first playoff appearance.
He left in 2018 to succeed Nice to replace Favre, but released in December 2020 after a series of five defeats in all competitions.
As a player, Vieira spent 10 and a half seasons in the premier league – new with Arsenal, where he won the title three times and the England Cup four times – and 18 months at Manchester city, where he retired from football.
Vieira then joined Inter Milan and won four straight Serie A titles before returning to England midway through the 2009-10 campaign to sign for City.