In this study, five selected different rodent species, Meriones tristrami (karyotype 2n=72 from Mardin/Turkey), Nannospalax ehrenbergi (karyotype 2n=52 from Diyarbakır/Turkey and Mosul/Iraq), Nannospalax nehringi (karyotype 2n = 60 from Sivas/Turkey), Rattus rattus (karyotype 2n=42 from Diyarbakır/Turkey), Sciurus anomalus (karyotype 2n=40 from Bingöl/Turkey) were studied in respect to bacterial species.The results showed the presence of two types of bacteria Pantoea agglomerans and Serratia liquefaciens in intestine Nannospalax ehrenbergi and N. nehringi; as bacterial species isolated Aeromonas hydrophila and Klebsiella oxytoca from intestine Meriones tristrami and Rattus rattus. Salmonella choleraesuis is also found in R. rattus. The bacterial species isolated Klebsiella oxytoca and Salmonella choleraesuis from intestine Sciurus anomalus. It is the first study of its kind in the detection of bacterial species present in specific types of rodents.