The need for effective diversity management to foster innovation and enhance employee satisfaction in a rapidly diversifying workforce influenced by globalization is essential for multinational companies. This study investigated the influence of diversity management and inclusion practices on organizational performance at Friesland Campina Plc, Nigeria. The study adopted a descriptive research design, and data were collected through structured questionnaire from 211 employees. Hypotheses were tested using regression and correlation analysis. Findings revealed that diversity management significantly impacts organizational innovation (p < 0.001, R² = 0.875), while inclusive practices are positively correlated with employee satisfaction (Pearson coefficient = 0.763). The study concluded that effective diversity and inclusion practices enhance organizational performance, innovation, and employee satisfaction, recommending continued leadership commitment, diversity training, and inclusive recruitment. These findings underscore the strategic importance of diversity and inclusion in enhancing organizational performance and employee engagement within Friesland Campina Plc Nigeria.