Personality factors and multidimensional perfectionism have not been researched among professional counsellors. This study examined the relationship between the Big Five (John, O. P., Naumann, L. P., & Soto, C. J. [2008]. Paradigm shift to the integrative Big Five trait taxonomy: History, measurement, and conceptual issues. In O. P. John, R. W. Robins, & L. A. Pervin [Eds.], "Handbook of personality: Theory and research" [pp. 114-158]. New York, NY: Guilford Press) personality factors with Hewitt and Flett's (1991. Perfectionism in the self and social contexts: Conceptualization, assessment, and association with psychopathology. "Journal of Personality and Social Psychology," 60, 456-470) three dimensions of perfectionism among counsellors (N = 257) using a canonical correlation. All canonical functions were statistically significant, explaining 43.8% of the total variance within the data. Correlations across variable sets indicate a significant correlation between neuroticism and socially prescribed perfection (r = 0.430; p < 0.001), neuroticism and self-oriented perfection (r = 0.297; p < 0.001), extraversion and socially prescribed perfection (r = -0.231; p = 0.002), conscientiousness and socially prescribed perfection (r = -0.180; p = 0.015), and agreeableness and others-oriented perfection (r = -0.175; p = 0.018).