Introduction: Despite substantial evidence on the impact of individual dietary components on obesity, understanding how broader dietary patterns influence obesity risk across populations remains critical. Studies on specific nutrients provide valuable insights but miss the complexity of human diets. This review summarizes the association between dietary patterns (DP) and overweight/obesity in adults worldwide. Method: We systematically searched PubMed (MEDLINE), Scopus (Elsevier), Science Direct, and CINAHL (EBSCOHost), finding 26 relevant articles out of 8,521, excluding articles that did not meet the criteria. Results: The "western", "modern" or "fast-food" DP was commonly associated with an increased risk of overweight/obesity (OR= 4.09, 95% CI= 0.97,11.72, p<0.001) while the "prudent" or "healthy" DP demonstrated a lower risk of overweight/obesity (OR= 0.16, 95% CI= 0.05, 0.52, p<0.01). Conclusion: Our review highlights an association between dietary patterns and overweight/obesity in adults and acknowledges the confounding factors in individual studies. Nonetheless, it provides the baseline for further review and meta-analysis such as among cohort or longitudinal studies in combating obesity epidemic.