Despite the above limitations, the current meta-analysis could efficiently estimate the association between AUD and suicide. Furthermore, a wide search strategy was developed in order to increase the sensitivity of the search to include as many studies as possible. Our study included all types of observational studies irrespective of age, country, race, publication date, and language. We screened 8548 retrieved references and included 31 eligible studies in the meta-analysis involving 420,732 participants. Thus, the evidence was sufficient to make a robust conclusion regarding the objective of the study for estimating the association between AUD and suicide.