BACKGROUND: Metabolic syndrome, a cluster of conditions increasing the risk of heart disease, stroke, and diabetes, is a growing concern globally. In Saudi Arabia, lifestyle factors such as physical activity and dietary patterns play a significant role in the prevalence of metabolic syndrome. STUDY PURPOSE: This study aims to explore the relationship between physical activity levels, dietary patterns, and the prevalence of metabolic syndrome among adults in Saudi Arabia. METHODS: A cross-sectional study was conducted using purposive and convenience sampling techniques. A total of 468 participants completed questionnaires assessing their physical activity levels and dietary patterns. Metabolic syndrome was determined based on clinical measurements of waist circumference, blood pressure, fasting glucose, and lipid levels. RESULTS: The analysis revealed a significant association between lower physical activity levels and poor dietary patterns with higher prevalence rates of metabolic syndrome. The analysis revealed that participants with low physical activity levels had a higher prevalence of metabolic syndrome ( CONCLUSION: The findings underscore the critical role of physical activity and dietary patterns in the development of metabolic syndrome in Saudi Arabia. Public health interventions targeting lifestyle modifications could be essential in mitigating metabolic syndrome and improving overall health.