Louis Figuier was a French scientist and writer. He was the nephew of Pierre-Oscar Figuier and became Professor of chemistry at L'Ecole de pharmacie of Montpellier. Louis Figuier was married to French writer Louise Juliette Bouscaren.

Louis Filler was a Russian Empire-born American teacher and a widely published scholar specializing in American studies.

Louis Fischer was an American journalist. Among his works were a contribution to the ex-communist treatise The God that Failed (1949), The Life of Mahatma Gandhi (1950), basis for the Academy Award-winning film Gandhi (1982), as well as a Life of Lenin, which won the 1965 National Book Award in History and Biography.

Louis Fisher was the Socialist Labor Party of America candidate for United States President in the 1972 Presidential election and he was "the party's top vote-getting presidential candidate." His vice presidential candidate was Genevieve Gunderson.

Louis Francis Salzman was a British economic historian who specialised in the medieval period.

Louis-Frédéric Nussbaum, also known as Louis Frédéric or Louis-Frédéric (1923–1996), was a French scholar, art historian, writer and editor. He was a specialist in the cultures of Asia, especially India and Japan.

Louis-Gabriel Michaud was a French writer, historian, printer, and bookseller. He was notable as the compiler of Biographie Universelle (1811–).

Louis Gallet was a French writer of operatic libretti, plays, romances, memoirs, pamphlets, and innumerable articles, who is remembered above all for his adaptations of fiction —and Scripture— to provide librettos of cantatas and opera, notably by composers Georges Bizet, Camille Saint-Saëns and Jules Massenet.

Louis Golding was an English writer, very famous in his time especially for his novels, though he is now largely neglected; he wrote also short stories, essays, fantasies, travel books, and poetry.

Louis Gonse was an art historian, Editor-in-Chief of the Gazette des Beaux-Arts and Vice-President of the Commission for Historic Monuments. He was also one of the first European experts in Japanese art.