Foster, who has been appointed for two years, has been assistant head coach of the New Zealand team since 2012 and takes over the top job from Hansen, who stepped down after the World Cup in Japan where New Zealand finished third.

He got the job ahead of Robertson, a former All Black, who has coached the Crusaders to the last three Super Rugby titles.

Foster spent eight years at the Chiefs Super rugby franchise, amassing over 100 games as coach.

He will now coach in Bledisloe Cup matches against Dave Rennie, the recently appointed Wallabies mentor, who succeeded him at the Chiefs.

Rennie won Super Rugby titles in his first two years in charge, while Foster's best effort was a losing final.

Foster was part of the coaching team which guided the All Blacks through a very successful period in which they recorded an 87 per cent winning record, including a World Cup victory in 2015 and numerous Rugby Championship titles.

During that time they also ensured the Bledisloe Cup remained in New Zealand's hands throughout.

NZR Chairman Brent Impey said Foster had come through as the preferred candidate following a lengthy and robust interview process.

"He brings world-class international experience to the role, an incredibly strong coaching team, and we think he'll do an outstanding job."Impey said.

Foster will be joined by four other coaches, who will be announced at a later date.

He said he was humbled to be selected as head coach.

"I feel truly privileged and honoured to be given this opportunity and I can't wait to lead the team into the next chapter of what is a remarkable legacy," Foster said.

"I'm incredibly proud of what we have achieved in the All Blacks over the last eight years and I'm excited and energised by a new coaching team who will join me."

Incoming NZR CEO Mark Robinson said Foster was committed to stamping his own mark on the team and wanted to bring a new and fresh energy into the All Blacks environment.

Australian Associated Press