Cornforth meninggal dunia pada tanggal 148 Desember 2013 di usia 96 tahun.<ref>[http://www.abc.net.au/news/2013-12-14/australian-nobel-prize-winner-john-warcup-cornforthn-dies/5156806 John Warcup Cornforth, the only Australian to win Nobel Prize for chemistry, dies age 95] abc.net.au</ref>
