Étienne-Jean-Baptiste-Pierre-Ignace Pivert de Senancour est un essayiste et philosophe français. Il est le père de Virginie de Senancour.

Étienne-Jean-Baptiste-Pierre-Ignace Pivert de Senancour was a French essayist and philosopher. Senancour was tinged to some extent with the older philosophe form of free-thinking, and had no sympathy with the Catholic reaction. Having no resources but his pen, Senancour was driven to hack-work during the period which elapsed between his return to France (1803) and his death at Saint-Cloud; but some of the charm of Obermann is to be found in the Libres Méditations d'un solitaire inconnu. Thiers and Villemain successively obtained for Senancour from Louis Philippe pensions which enabled him to pass his last days in comfort. Senancour also authored the comedic drama Valombré (1807), and late in life wrote a second novel in letters entitled Isabelle (1833). He composed his own epitaph, "Eternité, sois mon asile".

Senancour is immortalized for English readers in two poems by Matthew Arnold entitled "Stanzas in Memory of the Author of Obermann" and "Obermann Once More."

Obermann has been translated into English three times: in its entirety by A. E. Waite (1903) and J. Anthony Barnes (1910), and in selections by Jessie Peabody Frothingham (1901).

He is the father of Virginie de Senancour.