The businessman, who has been scouted by the North-West club for some time, has over 20 years of experience at the top level within football.
"I am delighted to take up the position of chief executive officer of Manchester City Football Club," Soriano told the club's official website. "The vision of the owner together with his commitment, and that of the chairman and board, make this opportunity absolutely compelling.
"The club has incredible potential to be fulfilled both on and off the field. I very much look forward to playing my part to ensure that happens."
Chairman Khaldoon Al Mubarak added: "The process of finding a chief executive officer has been deliberate, far reaching and exhaustive. In Ferran we have our preferred candidate.
"His experience in football and in the wider commercial world make him exceptionally well equipped to lead Manchester City through its continued evolution."
Soriano will take up his position at the Etihad Stadium from September 1.