Marc Quinn (born 1964) is a British artist, best known for Alison Lapper Pregnant, a statue of Alison Lapper which has been installed on the fourth plinth at Trafalgar Square, self, a sculpture of his head made with his own frozen blood, and "Garden" (2000). He is one of the Young British Artists (YBAs).

Quinn was born in London. He studied history and the history of art at Robinson College, Cambridge. He worked as an assistant to the sculptor Barry Flanagan.

He was not represented in the 1988 Damien Hirst-curated Freeze exhibition which brought the YBAs together for the first time (although he did at one time share a flat with Hirst). Quinn emerged in the early 1990s. He was the first artist represented by Jay Jopling, and was exhibited in Charles Saatchi's defining Sensation.