Fiona MacCarthy was an English biographer and cultural historian best known for her studies of 19th- and 20th-Century art and design.
MacCarthy began her career on The Guardian in 1963 initially as an assistant to the women's editor Mary Stott. She was appointed as the newspaper's design correspondent, working as a features writer and columnist, sometimes using a pseudonymous byline to avoid two articles appearing in the same issue. She left The Guardian in 1969, briefly becoming women's editor of the London Evening Standard before settling in Sheffield.
She later became a biographer and critic. She came to wider attention as a biographer with a once-controversial study of the Roman Catholic craftsman and sculptor Eric Gill, first published in 1989. MacCarthy is known for her arts essays and reviews, which appeared in The Guardian, The Times Literary Supplement and The New York Review of Books. She contributed to TV and radio arts programmes.