This article examines the hypothesis that individuals who were parentified as children are more likely to report impostor feelings in adulthood. A sample of 213 graduate students were given the Parentification Questionnaire (Sessions & Jurkovic, 1986) and Clance's Impostor Phenomenon Scale (Clance, 1985). Results indicated that parentification and the impostor phenomenon are moderately correlated (r = .37). No significant gender differences were found for either construct. With regard to racial/ethnic differences, no significant differences were found in parentification scores; however, Caucasians endorsed significantly higher impostor phenomenon scores than African Americans. The results suggest that the impostor phenomenon can be explained, in part, as a significant long-term effect of childhood parentification.