Jean Dubreuil, also known as Jean Du Breuil (22 July 1602 – 27 April 1670), was a French mathematician, music theorist, writer and essayist.^[1]

Son of the bookseller Claude Du Breuil, he continued his father's profession until he joined the Society of Jesus. He lived for a long time in Rome where he studied architecture. He is known for his work about the theory and practice of perspective.^[2]

• Breuil, Jean (1642). Diverses methodes universelles et nouvelles, en tout ou en partie pour faire des perspectives (in French). A Paris: François Langlois.
• Du Breuil, Jean (1642). Advis charitables sur les diverses œuvres, et feuilles volantes du sr. Girard Desargues (in French). A Paris: François Langlois, Melchior Tavernier.
• La perspective practique, 1642–1649
• L'Art universel des fortifications