Guillaume de Groot (1839–1922) was a Belgian sculptor.
Born in Brussels, he trained with sculptor Égide Mélot. His work includes:
figures of Namur and Luxembourg at the arch of the Cinquantenaire in Brusselsfour reclining figures on the window pediments at the Brussels Stock Exchange, for architect Léon Suys, circa 1870figure of Music, one of four figures on the piers of the facade, as well as the gilded Genius of Art, atop the Royal Museums of Fine Arts of Belgium for architect Alphonse Balat, circa 1875heroic figure of Labor for the Tournai railway station, 1881bronze statue of Charles Rogier, Place de la Liberté, 1897
