Iza Duffus Hardy (11 October 1850 – 30 August 1922) was a prolific English novelist and travel writer, associated with the pre-Raphaelite artistic community.

(1885), The Westhorpe Mystery (1886), The Girl He Did Not Marry (1887),[15] Love In Idleness (1887),[16] A New Othello (1890),[17] A Woman's Loyalty (1893), In the Springtime of Love (1895), MacGilleroy's Millions (1900), The Lesser Evil (1901), Man, Woman, and Fate (1902), The Master of Madrono Hills (1904),[18] A Trap of Fate (1906), and The Silent Watchers (1910).

[22] Hardy and her mother traveled to the United States several times, touring the South,[23] the West,[24] and Florida,[25] and visiting with prominent Americans including Henry Wadsworth Longfellow and Oliver Wendell Holmes.

She received a government pension after her mother's death, in recognition of her father's career in the Public Record Office.

[31] Two letters by Hardy to Lucy Madox Brown Rossetti are in the Sheila and Terry Meyers Collection of Swinburneiana at the College of William & Mary.