Jean Lemaire de Belges (ca 1473 – ca 1525) was a Walloon poet and historian who lived primarily in France.

He was born in Hainaut (Hainault), a nephew of Jean Molinet , and spent some time with him at Valenciennes, where the elder writer held a kind of academy of poetry. Lemaire in his first poems calls himself a disciple of Molinet. In certain aspects he does belong to the school of the grands rhétoriqueurs ("rhetoricians"), but his great merit as a poet is that he emancipated himself from the affectations of his masters. This independence of the Flemish school he owed in part perhaps to his studies at the University of Paris and to the study of the Italian poets at Lyon, a centre of the French renascence. In 1503 he was attached to the court of Margaret of Austria, duchess of Savoy, afterwards Regent of the Netherlands. For this princess he undertook more than one mission to Rome where he came into contact with the culture of the Italian Renaissance; he became her librarian and a canon of Valenciennes. To her were addressed his most original poems, Lettres de l'amant vert, the amant vert (green lover) being a green parrot belonging to his patroness.

Lemaire gradually became more French in his sympathies, eventually entering the service of Anne of Brittany, wife of Louis XII, and supporting Louis's ambitions to create a church relatively independent of the Pope. His prose Illustrations de Gaule et singularitez de Troye (1510-1514), largely adapted from Benoit de Sainte More , is a novel-like history that connects the Burgundian royal house with Hector using fictional characters.

Lemaire probably died before 1525. Étienne Pasquier, Pierre de Ronsard and Joachim du Bellay all acknowledged their indebtedness to him. In his love for antiquity, his sense of rhythm, and even the peculiarities of his vocabulary he anticipated the humanist movement led by Du Bellay and Ronsard, the Pléiade.