Ethnocentricity, the belief in the superiority of one’s own culture, influences how societies define, interpret, and respond to mental and behavioral disorders. Behavioral disorders—manifestations of maladaptive, socially disruptive, or normdeviant behavior—are not culturally neutral phenomena. This review explores the interrelation between ethnocentric attitudes, diagnostic frameworks, and the understanding of behavioral disorders. It synthesizes literature on cultural psychiatry, diagnostic bias, and community mental health to demonstrate how ethnocentrism shapes perceptions of behavioral deviance, prevalence patterns, and clinical outcomes. The article also emphasizes implications for community medicine, particularly in low- and middle-income countries (LMICs), and proposes culturally sensitive approaches to diagnosis, prevention, and management.