Louis Dorus (born Vincent Joseph van Steenkiste; 1 March 1812 – 9 June 1896)[1] was a 19th-century French classical flautist.

[2] He is the younger brother of Julie Dorus-Gras, the father of the singer and pianist Juliette Vansteenkiste called Dorus, known after her marriage as Rabaud-Dorus, and Henri Rabaud's grandfather.

During these years, he gave concerts, and impressed those who listened to him, as testified by the newspapers of the time devoted to music: Le Ménestrel praised "The flute solo executed with so much taste and perfection by Mr. Dorus, has earned this young artist the applause of the whole venue".

At the height of his musical career, he was awarded the Légion d'honneur by Marshall Vaillant in the name of Emperor Napoléon III.

[12] Louis Dorus and his elder sister Julie Dorus-Gras mostly rubbed shoulders with musicians: Hector Berlioz, Giuseppe Verdi, Fromental Halévy and Giacomo Meyerbeer, for whom Julie Dorus-Gras played the role of Alice in Robert le diable.

Vincent van Steenkiste witnessed the death of his brother-in-law Simon Victor Gras, first violinist at the Paris Opera in Étretat on 4 July 1876 and the birth of his grandson Henri Rabaud.