Devlin will join the FTSE 250-listed firm’s board on that date and, following an induction and handover, he will be appointed the betting firm’s chairman on 2 April 2018 when Gareth Davis will stand down.
Aside from being chairman of the leading pub operator and brewer, Devlin is also currently Chairman of Sports Information Systems (Holdings) Limited (SIS), where William Hill holds a 19.5% share, and is a non-executive director of the Football Association.
William Hill said in a statement on Wednesday that he will step down from both the latter roles in January and June 2018 respectively.
Commenting on the appointment Sir Roy Gardner, William Hill’s senior independent director said: "Roger Devlin has extensive experience as a listed company Chairman, in the City from his early days in corporate finance and across his sector relevant appointments at Hilton Group, Gamesys and SIS.
“We look forward to him joining as Chairman and continuing the strong recent progress the Group has made under Gareth's chairmanship.”