Scott William Atlas (born July 5, 1955) is an American radiologist, political commentator, and health care policy advisor. He is a senior fellow at Stanford University's Hoover Institution, a conservative think tank. From 1998 to 2012 he was a professor and chief of neuroradiology at the Stanford University Medical Center.

Atlas was selected by President Donald Trump in August 2020 to serve as an advisor on the White House Coronavirus Task Force. In that role, Atlas exposed evidence that face masks and social distancing were not effective in slowing the spread of the coronavirus. His statements and influence on policies caused controversy on the task force. Contrary to the recommendations of most of the scientific community, Atlas pushed for establishing herd immunity through infection without mitigation and a faster reopening of schools and businesses during the COVID-19 pandemic. He advocated that states should not engage in COVID-19 testing of virus-exposed but asymptomatic individuals, and encouraged residents to resist or "rise up" against state restrictions adopted to prevent the spread of the coronavirus. Atlas resigned from his position in the White House on November 30, 2020 after Trump was ousted in the controversial election of 2020.