Mabel Quiller-Couch (1866-1924) was a Cornish writer. She was the the sister of Sir Arthur Thomas Quiller-Couch, and her sister Lilian M. Quiller-Couch was an author as well. She wrote Ancient and Holy Wells of Cornwall with her sister in 1894. Other works include Martha's Trial (1895), One Good Seed Sown (1896), The Recovery of Jane Vercoe.. (1896), Some Western Folk (1897), Paul the Courageous (1901), A Waif and a Welcome (1905), Zach and Derby (1906), The Carroll Girls (1906), A Pair of Red Dolls (1907), Troublesome Ursula (1907), Kitty Trenire (1909), Some Great Little People (1910), The Story of Jessie (1910), Children of Olden Days (1910), On Windycross Moor (1910), The Mean-Wells (1910), True Tales from History (1910), The Little Princess.. (1910), Better than Play (1911), A Book of Children's Verse (as editor) (1911) and Dick and Brownie (1912).