New Zealand educator and writer of fiction, nonfiction, and poetry. In the field of education, she became known for her innovative work in adapting traditional British teaching methods to the special needs of Maori children. Her aim was peace and communication between two radically different cultures, and most of her writing, both fiction and nonfiction, draws heavily upon her experiences in this endeavour.

Ashton-Warner's novels (Spinster, 1958; Incense to Idols, 1960; Bell Call, 1964; Greenstone, 1966; and Three, 1970) met with favourable critical response, and several of them became best-sellers. Her works of autobiographical nonfiction (Teacher, 1963; Myself, 1967; Spearpoint: “Teacher” in America, 1972), however, did not fare as well critically or commercially. She also wrote short stories and poems, a number of which appeared in New Zealand periodicals. One of her novels, Spinster, was the basis for a British film, Two Loves (1961).