Oscar Garcia told Brighton's official website: "I am delighted to have the opportunity to work in English football for the first time. Brighton and Hove Albion is one of the most exciting and progressive clubs in the country."
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.
Brighton have named former Barcelona midfielder Oscar Garcia as their new head coach.
The Championship club have turned to Garcia, 40, to replace Gus Poyet after the Uruguayan was sacked as manager at the weekend.
Poyet is set to appeal against his dismissal but the Seagulls have handed Garcia the newly-created position of head coach, which he will begin tomorrow morning.