Sidney McCall (8 March 1865—11 January 1954), born Mary McNeill, later Mary McNeil Fenollosa, was an American novelist and poet. Several of her novels became films.
McCall was born Mary McNeill (later dropping one of the l's) in Wilcox County, Alabama, to William Stoddard McNeill, a Confederate Army lieutenant from Mobile, Alabama, and Laura Sibley. McCall was the oldest of five children.
The Breath of the Gods is based on her novel of the same name. The Eternal Mother, a lost 1917 silent film, is based on her Red Horse Hill. The Dragon Painter (1919) is based on her novel The Dragon Painter.
Mary Fellennosa was also responsible for the posthumous completion, checking and publication of her late husband's magnum opus.