Winifred Graham[1] (born London 21 April 1873; died Hampton-on-Thames 5 February 1950) was an English novelist and anti-Mormon activist.

[4] The daughter of Robert Graham, a wealthy stockbroker, she enjoyed a privileged upbringing in Hampton-on-Thames, displaying literary and dramatic talent from an early age.

Her short story "Through the Multitude of Business", published in the summer 1894 issue of Belgravia magazine, described the revenge of a beautiful heiress on a man who had taken advantage of her.

[6] Graham was a prolific writer, producing eighty-eight books during her lifetime,[6] as well as several short stories published in newspapers and magazines.

In addition to the romantic novels and thrillers which constituted the vast majority of her output, she also wrote a highly critical popular history of Mormonism, two volumes supposedly communicated by her father after his death via automatic writing, and a three-volume autobiography.