He's stepping down following their relegation.
Sam Allardyce will leave his role as West Brom manager at the end of the season.
The 66-year old has made the decision to step down after failing to keep them in the Premier League.
Allardyce says the job of getting them back into the top-flight at the first attempt is more suited to a "young ambitious" coach:
Speaking to the club's website Allardyce said:
“West Bromwich Albion made me a generous offer to stay at The Hawthorns that shows the commitment of an ambitious club. After serious consideration I have decided not to accept that offer.
“If I were to stay and achieve promotion next season the expectation would be for me to continue for at least another season and, sadly, that is not a commitment I feel able to make at this stage of my career.
“I believe the club now needs stability and continuity and this would, in my opinion, best be provided by a young and ambitious manager who can get us back to where we should be as an established Premier League football club.
“I must thank the players and staff, in particular Luke Dowling and Ken (Xu Ke), for their unwavering commitment to a very difficult challenge during my time at the club. This challenge was made all the more difficult, of course, by the enforced absence of the club’s fantastic supporters, some of whom I am delighted were present for our final home game against West Ham United.
“The club have asked for my opinion on the qualities my successor will require and I have been more than happy to offer my thoughts. The search for my replacement starts after the final game of the season at Leeds United. In the meantime, we will be concentrating fully on the preparation for that game and will do everything we can to finish the season with as many points as possible.”
Third Time The Charm As Laois Claim Joe McDonagh Cup
Offaly Pupils Become Local Stars After Publishing Bestselling Book
Katie Taylor To Fight At Croke Park In September
Laois And Westmeath Set For Big Tests In Intermediate Camogie Championship
I Knew I Had To Play A Good Round To Win - Ella Cantwell
Mullingar Athletic And Clonaslee United To Clash In Combined Counties Cup Final
Shane Lowry And Rory McIlroy In Contention At Memorial Tournament
There's Serious Competition In The Laois Panel - Mark Dowling
Westmeath Ladies Look To Book All-Ireland Quarter-Final Spot
Alex Dunne Aiming For Big Weekend In Monaco
Offaly Camogie Captain Looking Forward To Kilkenny Clash
Shane Lowry In Action At Memorial Tournament
Laois Aiming To Make It Third Time Lucky In Joe McDonagh Cup Decider
Galway To Host Westmeath On Sunday June 14th
Second Round Draw Made For FAI Cup
Cian Reddy Keeps Up Unbeaten Professional Record
Westmeath Ladies Get Opening Win In All-Ireland Intermediate Championship
Athlone Town Knocked Out Of All-Island Cup
Limerick See Off Offaly In Senior Camogie Championship
Athlone Town Suffer Defeat Away To UCD In First Division