"I am proud to be back with Louis van Gaal after being appointed coach of the Netherlands," said Edgar Davids.
The Dutchman is expected to take over immediately and is expected to make a big contribution later this year and throughout the World Cup venue.
Van Gaal, who worked with Ajax in the 1990s, has taken over from Henk Fraser, the 49-year-old Pitbull, who will be the new head coach of FC Utrecht.
"I'm not only proud but also very passionate about working with Louis van Gaal, who is known as a great coach, in the Netherlands," said David.
His role is 'Deputy Assistant'. Van Gaal's first assistant was another veteran of the Ajax in the 1990s.
Van Gaal announced in April that he had been successfully treated for prostate cancer. Before taking over from Ronald Koeman, Qatar will lead the Netherlands in 2022 and Davids believes he can make a positive contribution to the Oranje national team.
In his third term as Netherlands coach, Van Gaal, 70, said: "Edgar David is delighted to be joining our technical staff.
"Henk Fraser has made it clear that he will be fully focused on FC Utrecht from next season, and I asked Edgar if he would like to be a second assistant at Oranje.
"Our paths have been crossed regularly in the past and we believe he can fill this role in the best possible way. Players can make full use of their international experience in the last four international tournaments, among other things."
David has little handshake experience and is not at the top of the game, but his career spans Ajax, Milan Juventus Barcelona He was as successful as Inter Milan and Tottenham Hotspur. His coaching positions include Barnet; Arrived at Telstar and Olhanense.
He made 74 appearances for the Netherlands, captaining the team 12 times, eight European Championships and one World Cup.