Newmark is a surname. Notable people with the surname include:
Andy Newmark, American musicianBetsy Newmark, high school teacher and bloggerBobby Newmark, fictional character in novelBrooks Newmark (born 1958), British politician, Member of Parliament for BraintreeCraig Newmark, founder of CraigslistDave Newmark, former basketball playerHarris Newmark, former businessman and historianJoseph Newmark (1799–1881), Prussian-born American rabbi.Nathan M. Newmark, structural engineerPeter Newmark (1916–2011), an English professor of translation