Background: The third trochanter is a rounded, linear or conical projection along the superior border of gluteal tuberosity of the femur. Purpose of the study is to find the frequency of the third trochanter in human femora and determine its dimensions and its distance from the tip of greater trochanter of the femur. Methods: Sixty dry human femora (thirty right and thirty left) were examined for the presence of third trochanter, their dimensions and their distance from greater trochanter being measured by slide calliper. Results: The third trochanter was noted in 21.66 % cases. Their mean length and width were found to be 2.61 __ampersandsignplusmn; 0.97 cm and 0.96 __ampersandsignplusmn; 0.15 cm respectively. The average distance of the third trochanter from the tip of the greater trochanter was found to be 6.81 __ampersandsignplusmn; 0.64 cm. Conclusion: The current study will be useful in anthropometry and orthopaedics.