<p>People may form impressions about different groups of people, including entrepreneurs. Drawing from the constructive and blind patriotism distinction, we suggested that demonstrating constructive, compared to blind patriotism, might improve social entrepreneurs’ authenticity and general impressions and thus positively affect success-related entrepreneurial outcomes (i.e., finding collaborators and funding). In line with our expectations, in a correlational Study 1 (<i>N</i> = 141), ratings of real-life social entrepreneurs on constructive patriotism positively predicted general perceptions of social entrepreneurs. We further explored these findings in two <i>preregistered</i> experiments. In Study 2 (<i>N</i> = 428), participants in a constructive patriotism condition rated a fictional social entrepreneur more positively and were more willing to work for him than their counterparts in a blind patriotism condition. In Study 3 (<i>N</i> = 391), we found that expressions of constructive patriotism positively affected perceptions of authenticity and funding intentions. Study 3 also found evidence of a serial mediation effect: greater levels of authenticity ratings and more positive general perceptions mediated the effect of our condition on (a) intentions to work for and (b) fund the social entrepreneur. Therefore, expressions of constructive patriotism might help to manage public perceptions of social entrepreneurs.</p>