Une page d'amour is the eighth novel in the 'Rougon-Macquart' series by Émile Zola, set among the petite bourgeoisie in Second Empire suburban Paris. It was first serialised between December 11, 1877, and April 4, 1878, in Le Bien public, before being published in novel form by Charpentier in April 1878.

The central character of the novel is Hélène Grandjean 'née' Mouret (b. 1824), first introduced briefly in 'La fortune des Rougon'. Hélène is the daughter of Ursule Mouret 'née' Macquart, the illegitimate daughter of Adelaïde Fouque (Tante Dide), the ancestress of the Rougon-Macquart family. Hélène's brothers are François Mouret, the central character of 'La conquête de Plassans', and Silvère Mouret, whose story is told in 'La fortune des Rougon'.