Frequencies of various hemoglobinopathies were examined in a total of 1,922 individuals of Eti-Turk origin by electrophoretical techniques. Hemoglobin A2 (Hb A2) and hemoglobin F (Hb F) determinations were also performed in 651 and 1,642 cases, respectively. Mean hemoglobin S (Hb S) frequency was found to be 15.3%. Variations among the different age groups were insignificant. Hemoglobin E (Hb E) and β-thalassemia frequencies were 0.47 and 1.23%, respectively. Hemoglobin Hacettepe and hemoglobin D were found once. Red cell glucose-6-phosphate dehydrogenase (G6PD) deficiency was found in 6.5% of males