English novelist noted for her sensitive portrayals of girls on the threshold of adult life. An accomplished stylist, she was adept at capturing nuances of moods. She was the sister of the editor and publisher John Lehmann.

She was educated privately and at Girton College, Cambridge, scene of a portion of her first novel, Dusty Answer (1927), a finely told story of a girl moving through childhood and adolescence to the complexity of mature emotions. Invitation to the Waltz (1932) is a slight, but wholly realized, work about a girl's timid confrontation with social demands. The girl appears again, this time in an affair with a married man, in The Weather in the Streets (1936).

Lehmann's style grew more complex, and her subject matter took in more of the world, in her later books: The Ballad and the Source (1944), in which a dominating old woman is seen through the eyes of a 14-year-old girl, and The Echoing Grove (1953), elaborating on a girl's growing awareness of a love triangle. Her autobiography is entitled The Swan in the Evening (1967). Her novel A Sea-Grape Tree was published in 1976. She was made a Commander of the Order of the British Empire in 1982.