René de Boisdeffre (3 April 1838 – 25 November 1906) was a French composer.

His musical education began with Charles Wagner (himself a pupil of P. J. G. Zimmermann) and was continued with Auguste Barbereau.

Quite conservative in his style, Boisdeffre owed much to Gounod and Massenet in his vocal music, while his instrumental scores were influenced by Lalo and Saint-Saëns.

[1] In May 1883, Boisdeffre was awarded the Prix Chartier for his chamber music.

[2] He died in Vézelise, Département Lorraine, aged 68.