American novelist, short-story writer, and essayist whose dense works provide a dark, often satirical analysis of American culture.

Wallace was the son of a philosophy professor and an English teacher. He received a B.A. from Amherst College in 1985. He was completing a master's degree in creative writing at the University of Arizona when his highly regarded debut novel, The Broom of the System (1987), was published. He later taught creative writing at Illinois State University and at Pomona College. He received a MacArthur Foundation Fellowship grant in 1997.

Wallace became best known for his second novel, Infinite Jest (1996), a massive, multilayered novel that he wrote over the course of four years. In it appear a sweeping cast of postmodern characters that range from recovering alcoholics and foreign statesmen to residents of a halfway house and high-school tennis stars. Presenting a futuristic vision of a world in which advertising has become omnipresent, Infinite Jest takes place during calendar years that have been named by companies that purchased the rights to promote their products. Critics, who found Wallace's dense writing style variously exhilarating and maddening, compared Infinite Jest with the novels of Thomas Pynchon (Pynchon, Thomas) and Don DeLillo (DeLillo, Don).

Wallace's short stories are collected in Girl with Curious Hair (1989), Brief Interviews with Hideous Men (1999), and Oblivion (2004). His essay collections include A Supposedly Fun Thing I'll Never Do Again (1997) and Consider the Lobster, and Other Essays (2005). Everything and More: A Compact History of Infinity (2003) is a survey of the mathematical concept of infinity. He also wrote, with Mark Costello, Signifying Rappers: Rap and Race in the Urban Present (1990; 2nd ed. 1997). Wallace's death was an apparent suicide.