Abstract: In this study, measurement of specific activity concentrations in ten commercial marble samples from different countries were carried out by using (HPGe) system. The results of measurements have shown that the maximum values specific activity concentrations for ²³⁸U, ²³²Th which were equal to 27.420, 30.480 Bq/kg, respectively, Brazilian origin while the maximum values specific activity concentrations for ⁴⁰K which were equal to 297.210 Bq/kg Iranian origin which were less than the corresponding recommended global values reported by UNSCEAR, publication. The radiation hazard indices [Ra_eq, D_y , (AED)_in, (AED)_out, H_in, H_ex and I_y] were also studied. The obtained results were also found to be less than the allowed limits given by UNSCEAR. Thus, all results obtained in the present work have shown no significant radiological hazard when the studied marble is used, for example, for construction of flooring buildings.