Sherratt only took his first head coach role in 2023 at Cardiff but has quickly won admirers for his work at the Arms Park, particularly developing young players.
The 46-year-old, who was Wales attack coach under Rob Howley between 2016 and 2017 has also had spells at Ospreys, Bristol and Worcester.
Sherratt will lead the Blues against Connacht in the United Rugby Championship on Saturday, before joining up with Wales full-time for the rest of the tournament on Monday.
In a statement, the Welsh Rugby Union chief executive Abi Tierney explained the decision to part ways with Warren Gatland.
“The WRU and Warren have agreed that making this change now is in the best interests of the Wales squad as it continues to compete in the 2025 Six Nations tournament.
“We are grateful to Warren for all he has done for the game in Wales. He remains our longest-serving and most decorated head coach in terms of the silverware he has won.
“Matt Sherratt takes over at a pivotal time. It is a credit to him that he has not hesitated to answer Wales’s call and is also testament to the strong relationship that now exists throughout the Welsh professional game that Cardiff Rugby are fully supportive of the move.
“Matt will return to Cardiff Rugby after the Six Nations in order to concentrate his efforts on what is already a promising campaign for our capital club.
“Our intention is to have a permanent appointment in place before this summer’s two-Test tour to Japan, with all options open.”
Cardiff Rugby chair, Alun Jones, said:
“First of all we are really proud as a club that Matt is getting this recognition and opportunity. He is a fantastic person and coach, and he deserves this opportunity.
“He has a track record of developing talent, getting the best from young players and utilising a positive playing style. That is clear to see from the rebuilding job he has done at the club and continues to lead.
“This is obviously a time of need and we are happy to support not only Matt’s continued development but the Welsh Rugby Union in the Six Nations. I am sure he will do a great job and look forward to him returning following the Championship’s conclusion.”
[Lead image: Cardiff Rugby]
