Lois Wickstrom is a children's author, playwright and scriptwriter. Wickstrom is known for the "Nessie" books written with Jean Lorrah.

Lokenath Bhattacharya was a prolific Bengali writer who chose to remain in isolation. Though 15 of his books have been translated into French, only 'Babughater Kumari Maach' has been translated into English. He finished his doctorate study in Paris. After spending his working life in India, he went back to France to spend the last decade of his life with his wife who is French. He has translated the poetry of Rimbaud, Henri Michaux into Bengali. He died in Egypt in a car accident.

Lola Ridge was an Irish-born New Zealand-American anarchist and modernist poet, and an influential editor of avant-garde, feminist, and Marxist publications. She is best known for her long poems and poetic sequences, published in numerous magazines and collected in five books of poetry.

María Dolores Rico Oliver, known professionally as Lolo Rico, was a writer, television producer, screenwriter and Spanish journalist.

Lon Luvois Fuller was an American legal philosopher, who criticized legal positivism and defended a secular and procedural form of natural law theory. Fuller was a professor of Law at Harvard University for many years, and is noted in American law for his contributions to both jurisprudence and the law of contracts. His debate in 1958 with the prominent British legal philosopher H. L. A. Hart in the Harvard Law Review was important in framing the modern conflict between legal positivism and natural law theory. In his widely discussed 1964 book The Morality of Law, Fuller argues that all systems of law contain an "internal morality" that imposes on individuals a presumptive obligation of obedience. Robert S. Summers said in 1984: "Fuller was one of the four most important American legal theorists of the last hundred years".

Lon Milo DuQuette, also known as Rabbi Lamed Ben Clifford and by his neo-Gnostic bishop title of Tau Lamed, is an American writer, lecturer, musician, and occultist, best known as an author who applies humor in the field of Western Hermeticism.

Longus, sometimes Longos, was the author of an ancient Greek novel or romance, Daphnis and Chloe. Nothing is known of his life; it is assumed that he lived on the isle of Lesbos during the 2nd century AD.

Loni Logori (1871–1929) was an Albanian-Egyptian entrepreneur, poet, and activist of the Albanian National Awakening.

Lonsdale Ragg was an Anglican priest author.

Loomis Havemeyer was a professor and administrator at Yale University who published books on anthropology and Yale.