Donald Harcourt De Lue (October 5, 1897, Boston, Massachusetts – August 26, 1988, Leonardo, New Jersey) was an American sculptor, best known for his public monuments.
De Lue studied at the Boston Museum of Fine Arts and later served as an assistant to sculptors Richard Recchia and Robert P. Baker. This was followed by five years in Paris where he continued his study, while working as an assistant to various French artists. He returned to the United States where he was engaged by Bryant Baker. In 1940 he was elected into the National Academy of Design as an Associate member, and became a full Academician in 1943.
In 1941, De Lue won a competition to create sculpture for the U.S. Post Office and Courthouse Building in Philadelphia, and from then on he stopped being an assistant for other artists and only worked on his own commissions and creations.
De Lue's works can be found in many museums across America. Like many other sculptors of his generation, he executed architectural works. He was also a prolific designer of medals and medallions.
De Lue taught at the Beaux-Arts Institute of Design in New York City during the early 1940s. In 1960, he won two Henry Hering Awards, given by the National Sculpture Society for outstanding collaboration between a sculptor and an architect, for the Normandy American Cemetery and Memorial in Colleville-sur-Mer, France, and for the Stations of the Cross at the Loyola Jesuit Seminary in Shrub Oak, New York.