The emergence and spread of antimicrobial resistance (AMR) pose significant challenges to public health worldwide. Understanding the dynamics of AMR within bacterial populations is crucial for devising effective strategies to mitigate its impact. Clonal lineages, representing genetically related group of bacteria, play a vital role in shaping the landscape of AMR dissemination. This review endeavors to provide a comprehensive update on the molecular sequence typing of carbapenem-resistant Acinetobacter baumannii (CRAB) clinical isolates across various geographical regions, with particular emphasis on the application of multilocus sequence typing (MLST). CRAB poses a silent threat in healthcare settings, emerging as a public health concern globally corporate with limited treatment options due to the resistance to carbapenems, the last-line antibiotics, leading to increased mortality rates. This review will serve as invaluable resources, offering in-depth analysis and interpretation of epidemiological data related to CRAB. Through meticulous examination of this data, healthcare professionals will be equipped with a nuanced understanding of the spread and prevalence of this pathogen across diverse geographic regions. Additionally, by incorporating evidence-based strategies informed by epidemiological insights, stakeholders can enhance their ability to effectively combat this formidable pathogen, thereby safeguarding public health and promoting optimal patient outcomes.