Lionel Dauriac (19 November 1847 – 26 May 1923) was a French philosopher and musicologist.
Dauriac was born in Brest, the son of an admiral.[1] He was a professor of musical aesthetics at the Sorbonne between 1896 and 1903.[2] He died on 26 May 1923 in Paris.[3] An internationally minded music critic, he wrote biographies of Gioachino Rossini, Richard Wagner and Giacomo Meyerbeer.