American short-story writer and novelist who is noted as a chronicler of the struggles of contemporary American men whose lives seem inexplicably to have gone wrong.

After graduating from McNeese State College (now University), Lake Charles (B.A., 1958), Dubus served six years in the U.S. Marine Corps and then took an M.F.A. degree from the University of Iowa in 1966. He taught literature and creative writing at Bradford (Massachusetts) College from 1966 to 1984 and served as a visiting instructor elsewhere.

Although Dubus's first published book was a novel (The Lieutenant, 1967), short stories and novellas became his specialty. His first collection of stories, Separate Flights (1975), is praised for its craft, strong sympathy with its characters, and detailed evocation of setting, as is Adultery and Other Choices (1977). “Andromache,” from the latter collection, is cited as the best of his many stories about the Marine Corps. Especially concerned with the strain and conflict between the sexes, Dubus tried to develop the point of view of his female characters. “The Fat Girl” and “Graduation” (from Adultery and Other Choices) and the 1984 novella Voices from the Moon are cited as his best attempts to develop the point of view of his female characters. The novella develops another favourite theme of Dubus's later work, that of the benign, even redeeming, power of Roman Catholicism. Other collections by Dubus are Finding a Girl in America (1980), The Times Are Never So Bad (1983), and We Don't Live Here Anymore (1984).

Dubus examined the emotional complexities of ordinary people who find that the traditional American virtues they assumed would lead to happiness do not do so. Most of his characters suffer compulsions or addictions focused on cigarettes, alcohol, food, coffee, drugs, or even weight lifting. When these fail to provide enough distraction, the male characters often turn to violence.

In 1986 Dubus stopped his car to help a stranded motorist and was struck by a passing car. Thereafter he was wheelchair-bound, but eventually, as he himself felt, his disability led to a creative rebirth. His later works include two essay collections, Broken Vessels (1991) and Meditations from a Movable Chair (1998), and the story collections Dancing After Hours (1996) and The Last Worthless Evening (1997).