Mary Carolyn Davies (1888–1974) was an American writer from Sprague, Washington. She was a poet, short story writer, and playwright. She lived for a period in New York, where she was a participant of several writing soirées. She later moved back to Oregon, where she led writing organizations. She again moved back to New York in the 1930s, and after this, she was no longer in the public eye. By 1940, she was destitute and suffering from malnutrition and anemia. However, when her plight was discovered by the public, she received medical care and lived until 1974.