Eugène de Rastignac [ø.ʒɛn də ʁas.ti.ɲak] is a fictional character from La Comédie humaine, a series of novels by Honoré de Balzac. He appears as a main character in Le Père Goriot (1835), and his social advancement in the post-revolutionary French world depicted by Balzac can be followed through Rastignac's various appearances in other books of the series.