Henri van de Waal (1910 – 1972) was a Dutch writer and art historian known for developing Iconclass. Van de Waal was born in Rotterdam. In 1934 he finished his education as an art historian in Leiden with a monography on Jan van Goyen. He accepted a position at the National Print Cabinet in The Hague, where he began work on a German concept of image-based historical research, which due to the special circumstances of the interbellum period was drastically reduced. He eventually finished his PhD thesis 12 July 1940, cum laude, on the patriotic subject of Zeventiende eeuwsche uitbeeldingen van den Bataafschen Opstand (17th-century images of the Batavian Revolt). Four months later he was dismissed as part of the actions by the German occupational forces against Jews.