Louis Untermeyer was an American poet, anthologist, critic, and editor. He was appointed the fourteenth Consultant in Poetry to the Library of Congress in 1961.

Louis Zangwill was an English novelist; born at Bristol, England. He was educated at Jews' Free School, and for a time acted as teacher there, but left together with his brother, Israel Zangwill, and set up a printing establishment. Afterward, however, he turned to literature, and produced, under the pseudonym "Z. Z.," "A Drama in Dutch", which attracted some attention for its local color. It was followed by "The World and a Man" (1896), "The Beautiful Miss Brooke" (1897), and "Cleo the Magnificent" (1899), all distinguished by a certain realistic vividness and somewhat cynical sense of humor. He also produced a more sympathetic study, "One's Womenkind".

Louisa May Alcott was an American novelist, short story writer, and poet best known as the author of the novel Little Women (1868) and its sequels Little Men (1871) and Jo's Boys (1886). Raised in New England by her transcendentalist parents, Abigail May and Amos Bronson Alcott, she grew up among many well-known intellectuals of the day, including Margaret Fuller, Ralph Waldo Emerson, Nathaniel Hawthorne, Henry David Thoreau, and Henry Wadsworth Longfellow.

Louisa Stuart Costello was an Anglo-Irish author on travel and French history, said to have been born either in Ireland or Sussex.

Louise Bryant was an American feminist, political activist, and journalist best known for her sympathetic coverage of Russia and the Bolsheviks during the Russian Revolution of November 1917.

Louise Chandler Moulton was an American poet, story-writer and critic. Contributing poems and stories of power and grace to the leading magazines, Harper's Magazine, The Atlantic, The Galaxy, the first Scribner's, she also published a half-dozen very successful books for children, Bedtime Stories, Firelight Stories, Stories Told at Twilight, and others that were considered popular in their day. She collected a few of her many adult tales into volumes, Miss Eyre of Boston and Some Women's Hearts. It is in Boston that she did the greater part of her work, including her books of travel, Random Rambles and Lazy Tours, published her four volumes of poetry, and edited and prefaced biographies, A Last Harvest and Garden Secrets, and the Collected Poems of Philip Bourke Marston, as well as a selection from Arthur O'Shaughnessy's verses.

Louise Hume Creighton was a British author of books on historical and sociopolitical topics, and an activist for a greater representation of women in society, including women's suffrage, and in the Church of England.

Louise Imogen Guiney was an American poet, essayist and editor, born in Roxbury, Massachusetts.

Louise Jordan Miln (March 5, 1864 – September 22, 1933) was an American actress, writer and novelist.

Louise Lamprey was the pen name of Lunnette Emeline Lamprey, an American writer of books for children.