Eugène Ortolan (1 April 1824 – 11 May 1891) was a 19th-century French jurist, diplomat and composer.
His grandfather was a magistrate in Toulon, his father Joseph Louis Elzéar Ortolan, a prosecutor and professor at the Paris Law Faculty.
By family tradition, Eugène Ortolan began a legal career, although his tastes leaned especially towards music.
A student of Jacques Fromental Halévy for counterpoint, and Berton for composition, he presented in 1845 the competition of musical composition of the Institut de France and won first Second Grand Prix de Rome, the only prize awarded that year.
He made many trips abroad in the diplomatic service, primarily in Belgium and Russia.