Hoornaert, who previously held a number of important financial positions at Inbev from 2000 to 2007, replaces Anne Vleminckx.
Hoornaert, who was most recently Inbev's vice president of finance for Western Europe, has a strong background in finance, controlling and mergers and acquisitions.
In a statement, Agfa said Hoornaert also has "extensive experience in cost reduction programs".
Agfa-Gevaert appoints new chief finance officer
Agfa-Gevaert has announced the appointment of Kris Hoornaert to the role of chief financial officer, with immediate effect.