This article extends the relevance of multicultural development to the Strengths-Based School Counseling (SBSC; Galassi & Akos, 2007) perspective. A relatively new construct for school counselors, the "multicultural personality" (MP), is introduced and defined. The MP is conceptualized as a cluster of narrow personality traits that can be subsumed under broader models of personality. Research has found that MP development is correlated with coping, adapting, and thriving in increasingly culturally diverse environments such as the United States. Suggestions for integrating MP development across the guiding principles of SBSC are presented.