Thomas Sigismund Stribling (March 4, 1881 – July 8, 1965) was an American writer. Although he acquired a law degree and practiced law for a few years, his career was mainly that of an author of fiction. Known first for adventure stories published in fiction magazines, he later published novels of social satire set mainly in the southern USA. His best-known work is the Vaiden trilogy, set in Florence, Alabama. The first volume is The Forge (1931). He won the Pulitzer Prize for the Novel in 1933 for the second novel of this series, The Store. The last, set during the 1920s, is The Unfinished Cathedral (1934). Both the second and third novels were chosen as selections by the Literary Guild.
His popularity during the 1920s and 1930s also inspired the adaptation of his works for other media. Three of his novels were adapted: Birthright was adapted twice as a movie, in 1924 (now lost) and 1939 (only part survives). Teeftallow and Fobombo were each adapted as plays with other titles (see Adaptations below) and produced on Broadway in New York City in 1928 and 1932, respectively.