In this study, the activity concentrations of terrestrial and anthropogenic radionuclides in the soil samples collected from Bafra Kizilirmak Delta were measured by using gamma spectrometry with an NaI(Tl) detector. The average values of activity concentrations of U-238, Th-232 and K-40 were found to be 37.22.8, 33.73.1 and 413.059.8 Bq kg(1), respectively. Cs-137 was also measured in some samples. It has a mean value of 13.81.0 Bq kg(1). From the activity concentrations, the absorbed gamma dose rates in outdoor and the corresponding annual effective dose rates and external hazard index (H-ex) were estimated.