Lady Florence Henrietta Darwin, (née Fisher, 1st married name Maitland, c. 1864-5 March 1920) was an English playwright.
Florence Henrietta Fisher was the daughter of Herbert William Fisher (1826-1903), author of Considerations on the Origin of the American War and his wife Mary Louisa Jackson (1841-1916). Her brother was the MP Herbert Fisher and her sister Adeline Fisher was the first wife of the composer Ralph Vaughan Williams.
She married first Frederic William Maitland (1850 - 1906), jurist and historian and they had two daughters Ermengard and Fredegond. Fredegond was a poet who married the economist Gerald Frank Shove.
On 3 March 1913 she became the third wife of Sir Francis Darwin, the twice-widowed botanist son of Charles Darwin. He was also a second cousin once removed of her sister's husband Ralph Vaughan Williams, Josiah Wedgwood being their shared ancestor. They had no children together.
Posthumously published were Six Plays (1921), including the plays The New Year, The Seeds of Love, Princess Royal, My Man John, Bushes and Briars and The Lover's Tasks. A book called Green Broom was published in 1923.