The relationship between two personality typologies, self-monitoring and psychological type, were studied. The 18-item Self-Monitoring Scale and the MBTI were completed by 101 university students. As hypothesized, extraversion, intuition, sensing, and perceiving were significantly associated with high self-monitoring. Conversely, as hypothesized, introversion, sensing, and judging were significantly associated with low self-monitoring. The results were consistent for MBTI analyses based on both type categories and on continuous scores. It appears that the perceptual/cognitive information processing preferences associated with extraversion, intuition, and perceiving complement high self-monitoring, while the processing preferences associated with introversion, sensing, and judging complement low self-monitoring.