René Boylesve (French pronunciation: [ʁəne bwalɛv]; 14 April 1867 in La Haye-Descartes – 14 January 1926 in Paris), born René Marie Auguste Tardiveau ([ʁəne maʁi oɡyst taʁdivo]), was a French writer and a literary critic.

Boylesve was orphaned early and went to school in Poitiers and Tours.

In 1895 he began to publish articles in various journals.

He is considered the heir of Honoré de Balzac and precursor of Marcel Proust.

In 1919 he was inducted into the Académie française.