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Background: Peptic ulcer disease has been a major threat to the world's population, which remains a significant cause of hospitalization worldwide and healthcare resource utilization. Objectives: We aimed to describe the global burden, trends, and inequalities of peptic ulcer disease. Design: An observational study was conducted. Methods: In this secondary analysis of the Global Burden of Disease, Injuries, and Risk Factors Study 2019, we extracted data for age-standardized incidence rates (ASIRs), disability-adjusted life year rates (ASDRs), and mortality rates (ASMRs); then, we stratified by age, level of regionals, and country; subsequently, we calculated estimated annual percentage changes (EAPC) of ASIR, ASDR, ASMR, and quantified cross-country inequalities in peptic ulcer disease mortality. Results: Globally, ASIR showed a continuous downward trend, from 63.84 in 1990 to 44.26 per 100,000 population in 2019, with an annual decrease of 1.42% [EAPC = −1.42 (95% CI: −1.55 to −1.29)]. ASDR showed a continuing downward trend, and the EAPC was −3.47% (−3.58 to −3.37). ASMR showed a persistent decline, declining by nearly half in 2019 compared to 1990 (3.0 versus 7.39 per 100,000 population), with an annual decrease of 2.55% [EAPC = −3.36 (95% CI: −3.47 to −3.25)]. A significant reduction in sociodemographic index (SDI)-related inequality, from an excess of 190.43 disability-adjusted life years (DALY) per 100,000 (95% CI: −190.83 to −190.02) between the poorest and richest countries in 1990 to 62.85 DALY per 100,000 (95% CI −62.81 to −62.35) in 2019. Conclusion: Global peptic ulcer disease morbidity and mortality rates decreased significantly from 1990 to 2019. These health gains were in accordance with a substantial reduction in the magnitude of SDI-related inequalities across countries, which is paired with overall socioeconomic and health improvements observed in the region. [ABSTRACT FROM AUTHOR]