Julie or the New Heloise (French: Julie ou la nouvelle Héloïse), originally entitled Lettres de Deux Amans, Habitans d'une petite Ville au pied des Alpes (Letters from two lovers, living in a small town at the foot of the Alps), is an epistolary novel by Jean-Jacques Rousseau, published in 1761 by Marc-Michel Rey in Amsterdam.

The novel's subtitle points to the history of Héloïse d'Argenteuil and Peter Abélard, a medieval story of passion and Christian renunciation.

[2] Arthur Schopenhauer called Julie one of the four greatest novels ever written, along with Tristram Shandy, Wilhelm Meister's Apprenticeship and Don Quixote.

[5] Diane de Polignac wrote to Marie Madeleine de Brémond d’Ars after finishing the novel: I dare not tell you the effect it had on me; no, I was past weeping; an intense pain took possession of me, my heart seized up; the dying Julie was no longer someone unknown to me, I became her sister, her friend, her Claire; I was so convulsed that had I not put the book down I would have been as overcome as all those who attended that virtuous woman in her last moments.

[7] Others identified less with the individual characters and more with the nature of their struggles, seeing in Julie a story of temptation, sin and redemption that resembled their own lives.