Sexual dimorphism is the systematic difference in form between individuals of different sex in the same species. In this study, it was aimed to observe how the femoral osteometric measurements could be useful for determining sexual dimorphism. For this purpose, a total of 67 (33 male, 34 female) canine femurs of known dolichocephalic type were used. A total of 6 osteometric measurements (largest length (GL), biggest width of the proximal end (Bp), the greatest depth of the caput femoris (DC),the smallest width of the diaphysis (SD), the smallest circumference of the diaphysis (CD),the greatest width of the distal tip (Bd) were taken from each femur. Three different indices (proximal index, diaphyse index and distal index) were calculated using these osteometric measurements. Statistical calculations of all osteometric measurements and index values obtained were evalated by the SPSS 21.0 program. The difference between the mean values of femur osteometric measurements of males and females was found to be statistically significant (P<0.01). In conclusion, femur osteometric measurements of dogs did not provide 100% sexual discrimination but, it could make a great contribution to this subject with a predictive coefficient of approximately 85%.