Critical thinking is an important learning outcome for college students. A review of the literature shows that this skill is affected by a number of factors, including exposure to cultural diversity. The University of Guam (UOG) located in the western Pacific is multicultural and multilingual. Using data from focus groups, this study examined the perceived influence of diversity experiences on critical thinking among UOG students in the College of Professional Studies (Business, Education, and Nursing). The study participants defined critical thinking as the act of independently and systematically weighing evidence to make an evaluation and judgment, to determine merit, and to increase a desirable outcome. Diversity experiences helped the participants to develop sensitivity and awareness of self. The findings of this study confirm the results of prior studies on diversity and critical thinking. Educational importance of the findings was discussed. (Contains 1 table.)