Candidates in the mix could include the current Glasgow head coach, Franco Smith, the former Wallabies boss Michael Cheika and the Wales-based Simon Easterby, who is interim Ireland head coach for the Six Nations while Andy Farrell prepares to take charge of the Lions in Australia later this year.
The Welsh Rugby Union (WRU) is expected to confirm the news later on Tuesday and would be required to appoint an interim head coach for remaining Six Nations fixtures against Ireland, Scotland and England.
Warren Gatland is set to leave his position as Wales rugby union head coach, with immediate effect, after a dismal run of 14 consecutive Test match defeats.
The WRU assessed Wales’ miserable Autumn Nations Series campaign earlier this season, which featured defeats against Fiji, Australia and South Africa, before backing Gatland to continue.
The current assistant coach, Rob Howley, filled that role during Gatland’s first reign when the New Zealander was on British and Irish Lions duties.