Leicester Clarence Hemingway (April 1, 1915 – September 13, 1982) was an American writer.
He was the younger brother of writer Ernest Hemingway and wrote six books, including a first novel entitled The Sound of the Trumpet (1953), based on Leicester's experiences in France and Germany during World War II.
In 1961, Leicester published My Brother, Ernest Hemingway, a biography.
The work was well-received and brought Leicester both recognition as a writer in his own right and significant financial rewards.
With the capital from the work, Hemingway created the micronation of New Atlantis on a barge off the coast of Jamaica, intended to serve as a marine research headquarters.
The project was cut short when New Atlantis was destroyed in a 1966 tropical storm.