Oscar Garcia, who quit as Maccabi Tel Aviv boss last month, inherits a side which finished fourth in the Championship last season.
He played for Barca for six years and also coached the club's youth team before guiding Maccabi to the league title last season.
More top news
A man from Eastbourne who was stabbed by the Westminster attacked has told ITV Meridian he should have been jailed in 2003.
Philippa has the weekend weather for the east
Philippa has the weekend weather for the west