Teachers' self-perception of their competence impacts their attitudes toward teaching, which in turn, influences both their practice and student outcomes. The goal of the current study is to explore South Korean preservice primary school teachers' self-perception of being gifted and the relationship between their self-perception and self-efficacy in attitudes toward gifted education. This mixed-methods study includes a survey of 481 fourth-year South Korean preservice primary school teachers and follow-up focus group interviews with 13 of the survey participants. The survey results indicate that South Korean preservice teachers tend to not consider themselves as gifted. Also, the mean score of self-perception as gifted for the male preservice teachers was significantly higher than that of the female preservice teachers. Their self-perception as gifted was positively related to their self-efficacy in teaching gifted students and their tendency of seeing gifted education as elitist but negatively related to their support of gifted education.