The eighth IFSO Global Registry Report provides insights into metabolic bariatric surgery (MBS) practices worldwide. Data from 24 countries and 2 regional registries, covering 502,150 procedures, show that sleeve gastrectomy is the most common primary MBS procedure, while Roux-en-Y gastric bypass is the most common revisional procedure. Asian countries report lower BMI patients undergoing MBS with higher diabetes rates. Mortality is rare. Registries enable comparisons of demographics, procedures, and outcomes across countries. Aggregated data from established registries is used to avoid individual-level data risks and ensure data accuracy. The report highlights trends in MBS procedures, with most being primary, and shows that women are more frequently undergoing MBS than men, though men are more likely to have diabetes. Revisional procedures are highest in Australia, France, and Israel. Mortality rates are low, indicating the safety of MBS. The study's strength lies in the large number of registries and aggregated data, while limitations include inconsistent data definitions and missing data. The report underscores the importance of registries in understanding MBS trends and outcomes globally.The eighth IFSO Global Registry Report provides insights into metabolic bariatric surgery (MBS) practices worldwide. Data from 24 countries and 2 regional registries, covering 502,150 procedures, show that sleeve gastrectomy is the most common primary MBS procedure, while Roux-en-Y gastric bypass is the most common revisional procedure. Asian countries report lower BMI patients undergoing MBS with higher diabetes rates. Mortality is rare. Registries enable comparisons of demographics, procedures, and outcomes across countries. Aggregated data from established registries is used to avoid individual-level data risks and ensure data accuracy. The report highlights trends in MBS procedures, with most being primary, and shows that women are more frequently undergoing MBS than men, though men are more likely to have diabetes. Revisional procedures are highest in Australia, France, and Israel. Mortality rates are low, indicating the safety of MBS. The study's strength lies in the large number of registries and aggregated data, while limitations include inconsistent data definitions and missing data. The report underscores the importance of registries in understanding MBS trends and outcomes globally.