Hortense Flexner King (April 12, 1885 – September 28, 1973) was an American poet, playwright, and professor.
She married Wyncie King (1884–1961). They moved to Philadelphia. He was a contributor to the Saturday Evening Post. She taught at Bryn Mawr, from 1926 to 1940, and at Sarah Lawrence College from 1942 to 1950. They were friends of Susan Clay Sawitzky, and Martha Gellhorn.
- Clouds and Cobblestones 1920.
- The Stubborn Root and Other Poems (1930)
- North Window and Other Poems (1943)
- Poems (1961)
- Selected Poems (1963), with an introduction by English poet Laurie Lee
- Marguerite Yourcenar (ed.) Presentation Critique d'Hortense Flexner Suivie d'un Choix de Poems (1969),
- The Selected Poems of Hortense Flexner (1975)
- Half a Star: Poems by Hortense Flexner
- Voices (1916)
- Mahogany (1921)
- The Faun (1921)
- The Broken God
- The Road
- The Little Miracle
- Three Wise Men of Gotham
- A Maine Writer: Maine State Library
- "Sarah Lawrence Magazine: The Value of Money". Slc.edu. Retrieved 2011-08-11.
- Lindsey Apple (1997). Cautious rebel: a biography of Susan Clay Sawitzky. Kent State University Press. ISBN 978-0-87338-579-4.
- Caroline Moorehead (2004). Gellhorn: A Twentieth-Century Life. Macmillan. ISBN 978-0-8050-7696-7.
- Kleber, John E. (2001). The encyclopedia of Louisville. University Press of Kentucky. ISBN 9780813128900.
- "Hortense Flexner (King) Papers". University of Louisville. Retrieved 23 April 2013.