Peter Halley is an American artist and a central figure in the Neo-Conceptualist movement of the 1980s. Known for his Day-Glo geometric paintings, Halley is also a writer, the former publisher of index Magazine, and a teacher; he served as director of graduate studies in painting and printmaking at the Yale University School of Art from 2002 to 2011. Halley lives and works in New York City.

Neo-conceptual art describes art practices in the 1980s and particularly 1990s to date that derive from the conceptual art movement of the 1960s and 1970s. These subsequent initiatives have included the Moscow Conceptualists, United States neo-conceptualists such as Sherrie Levine and the Young British Artists, notably Damien Hirst and Tracey Emin in the United Kingdom.