He replaces Ian Mean, who is retiring on 6 March, and will take over the following Monday, 9 March.
Rob, left, has been a journalist for 35 years – the vast majority of which have been spent in the Western Daily Press circulation area.
Before becoming deputy editor of the Post Rob had previously worked as the paper’s investigations editor and news editor.
Sarah Pullen, publisher of Local World’s Bristol, Gloucestershire, Somerset and Dorset region said: “I am delighted to give Rob this opportunity. He knows the Western Daily Press and its patch very well.
“Rob has some great plans for its development, both in print and online.”
Ian, 69, is bowing out after a long career which saw him edit Gloucester daily The Citizen for ten years before taking over as content director for LW’s titles in the region in 2013
He made a return to day-do-day journalism as editor of the WDP last April after Tim Dixon stepped aside to become the paper’s commercial editor.