Louis Bénech, born Marie Joseph Ferdinand Louis Benech on September 24, 1875, in Paris, France, was a prominent French singer and songwriter, primarily known for his work as a lyricist. Despite graduating as a doctor of medicine in 1902, Bénech chose not to pursue a career in medicine, famously stating, "I do not trust medicine." Instead, he dedicated his life to music, residing in Paris and self-publishing numerous chansons both for himself and other songwriters under the names L. Benech or F. L. Benech.

Bénech collaborated extensively with lyricist Ernest Dumont, producing popular chansons such as "Le coeur humain" (1916), "Ne rendez pas les hommes fous ou La chanson du Passant" (1919), "Du gris" (1920), "Nuits de Chine" (1922), and "Dans les jardins de l'Alhambra" (1923). His operetta "Fol d'amour" premiered at the Theatre Bobino in Paris in 1907. One of his most enduring works, "Du gris," was immortalized by the singer Berthe Sylva.

He lived in various locations in Paris, including Rue d'Hauteville and Boulevard de Strasbourg, before his sudden death from a cerebral hemorrhage on March 20, 1925, at his home in Passage de l'Industrie. Bénech was buried in the family grave at the cemetery in Tour-de-Faure. His legacy was celebrated with a festival in his honor on April 30, 1925, and anniversary services in 1926 and 1927.

Bénech was the son of railroad employee Louis Blanche Benech and Aline Blanche Elise Lacaille, who divorced in 1882. On January 30, 1912, he married Yvonne Elise Ladan Bockairy, who was 17 at the time. Louis Bénech remains a significant figure in the history of French chanson.