The firm that makes Ben & Jerry's, Marmite, Dove, and Knorr said that Mr Schumacher would step down from his role on March 1 and leave the company on May 31.
According to Ian Meakins, chairman of Unilever, Mr Fernandez has a solid background and “profound knowledge of Unilever's operations”.
Hein Schumacher, the CEO of Unilever Plc, is abruptly leaving the company after less than two years leading the consumer goods division.
Since joining Unilever in 1988, Mr Fernandez has managed some of the top-performing markets for the company.
He initially joined the company in October 2022, as a non-executive director after serving as the CEO of Royal FrieslandCampina, a multinational dairy and nutrition company.