Building on a metacognitive framework of heuristic judgments, we investigate the effect of applicant stigma on interviewers’ overconfidence in their (biased) judgments. 193 experienced interviewers conduced a face-to-face interview with an applicant who was facially stigmatized or not, and who was either visible (traditional interview) or not (partially- blind interview) to the interviewer during the rapport building stage. In traditional interviews negatively biased interview ratings of stigmatized applicants and overconfidence in these judgments. This effect was partially mediated by the interviewer’s professional performance during rapport building. Interview procedure moderated both the direct and indirect effect (through professional performance) of applicant stigma on interviewer confidence. Results show that interviewer (over)confidence in biased judgments is driven by the initial effects of, and reactions to, the stigmatized applicant.