Generally women have been shown to possess impostor feelings more often than men but there is a gap in the local literature examining the impostor phenomenon and perfectionism in working women. It was hypothesized that severity of impostor phenomenon will be different in women from different occupations and there is a relationship between perfectionism and impostor phenomenon. In a quantitative correlational survey research design a total of 200 participants were taken from various workplace settings i.e., universities, hospitals, factories etc. Clance Impostor Phenomenon Scale (CIPS) and the Multidimensional Perfectionism Scale (MPS) were used to collect data. The one-way ANOVA revealed a significant difference in impostor scores between different professions where nnurses and doctors had higher levels of imposter phenomenon as compared to corporate workers. The Pearson correlation analysis showed a significant positive weak relationship between perfectionism and impostor phenomenon. Results and further implications are discussed.