Madati is the third official to hold the role in less than two years and succeeds Simon Thomas, who departed in September 2020.
Thomas, who replaced Philippe Le Floc’, had headed up FIFA’s commercial division for a little more than 12 months before deciding to leave world football’s governing body.
Madati, who has worked with Twitter, Viacom, Facebook, and Time Warner during a 20-year career in the industry, is due to start on Monday (July 19).
He was most recently vice-president of marketing at LinkedIn Marketing Solutions.
FIFA said Madati brings “expertise in developing global partnerships, marketing, brand strategies and customer engagement techniques, as well as creative and innovative approaches to digital marketing and harnessing the potential of the social media landscape”.
“I’m honoured and excited to join FIFA at a time when the global media and sports landscapes are so rapidly evolving,” Madati said.
“FIFA plays an important role in leading and championing innovation and creativity in and around football globally and I look forward to developing this further in my role as chief commercial officer.”
FIFA secretary general Fatma Samoura welcomed Madati to the role.
“Kay’s experience in leading commercial and marketing teams around the world will be a great asset to FIFA in his role as chief commercial officer,” she said.
“We look forward to working with him to cultivate and develop the countless opportunities today’s virtual multimedia landscape offers football in order to fulfil our goal of making the game truly global.
“We wish him every success in his new role.”