This study investigated the diversity of gut bacterial symbionts in weevils by sequencing DNA extracted from gut contents of 246 weevil specimens. The results showed that weevil gut microbiomes are diverse and complex, containing hundreds to thousands of bacterial operational taxonomic units (OTUs). Different weevil subfamilies harbored distinct bacterial community profiles. Major bacterial groups found included Enterobacteriaceae, Mollicutes, and Proteobacteria. The findings reveal a greater taxonomic breadth of symbiotic bacteria in weevils than previously known and show gut microbiomes are structured according to weevil taxonomy.