Kate Langley Bosher (February 1, 1865 – July 27, 1932) was an American novelist from Virginia, best known for her novels Mary Cary (1910) and Miss Gibbie Gault (1911).

[2] She married Richmonder Charles Gideon Bosher, a part owner of a carriage manufacturing business, on October 12, 1887.

Mary Cary, Frequently Martha was the most popular, selling over 100,000 copies within a year of release.

That warms the cockles of the chilliest, most snugly corseted heart.”[3] Mary Cary was adapted to film in the 1921 silent feature Nobody's Kid starring Mae Marsh (as Mary), Kathleen Kirkham, and Anne Schaefer, and directed by Howard Hickman.

[2] Bosher was an "ardent suffragist"[1] and joined forces with friend Lila Meade Valentine and others to found the Equal Suffrage League of Virginia (ESL) in November 1909.

[2] On January 20, 1912, Bosher and others testified in the chamber of the Virginia House of Delegates before a state legislative committee on the subject of women's suffrage.