America is unique in its celebration of nationalism in sports. U.S. athletes have also historically protested, particularly racial/ethnic inequalities, at sporting events-- especially during the national anthem ceremony. Since 2016, attention has centered on Black NFL players, and others who have been inspired by them, protesting during the anthem against unjust police violence and other racial/ethnic inequalities. These actions have prompted discussions about these issues, but also discussions about why the protests may have been inappropriate. This study, using descriptive and multiple regression analyses of data from the National Sports and Society Survey (N = 3,993), examines public opinions about this issue. Results suggest that public opinion is now more supportive of athletes being allowed to protest during the anthem; although, considerable opposition persists. Black individuals and those who recognize racial/ethnic discrimination in society are especially likely to support the right of athletes to protest. Heterosexual, Christian, sports fan, and military identities seem to encourage opposition to the right to protest. Indicators of traditionalism and sports nationalism attitudes are also negatively associated with support for athlete protests. Overall, these results help to better contextualize and understand the controversy over whether or not athletes should have the right to protest during the national anthem.