Walter Van Beirendonck is a Belgian fashion designer. He is the head of the Fashion Department at the Royal Academy of Fine Arts Antwerp.

He graduated in 1980 from the Royal Arts Academy in Antwerp. Together with Dirk Van Saene, Dries Van Noten, Ann Demeulemeester, Marina Yee and Dirk Bikkembergs they became known as the Antwerp Six when the idea of Belgian fashion seemed like a contradiction in terms. He was the fashion advisor for U2 and their pop Mart Tour and Erasure for their Cowboy-Tour.

Since 1983, he issues his own collections. They are inspired by the visual arts, literature, nature and ethnic influences. His unusual color combinations and a strong graphic influence are characteristic for his collections.