He had been coaching the United States' under-19 team prior to accepting the challenge with the Major League Soccer team.
Friedel said: "My staff and I are delighted and honoured to have been hired by the New England Revolution.
"I can guarantee that we, the staff and players, will give 100 per cent commitment to the club and our fans while looking forward to all the challenges ahead. We can't wait to get started right away building this club for the 2018 season."
Friedel made 450 appearances in the Premier League before announcing his retirement upon leaving Tottenham at the end of the 2014/15 season.