Measurements of six clavicular parameters (body length, circumference, breadth of proximal end, breadth of distal end, robustness, product index), obtained from a known contemporary Apulian skeletal population were taken to study sex determination by discriminant analysis. In the multivariate discriminant analysis ten functions show a percentage of sex misclassification of 10% and three of these were obtained using just two parameters. Anyway the best multivariate function was obtained using two measurements (maximum length, midclavicular circumference) takeable directly from the clavicle. Formulae for sex determination even from fractured clavicle are reported.