A cross sectional descriptive study was conducted at different areas of Mymensingh (Haluaghat, Vatikashor and Kachijhuly) from July 2015 to June 2016 on 101 Bangladeshi Garo people. Among them 60 were male and 41 were female. Sample collection was done by nonrandom purposive sampling technique. Mixed ethnicity and any kind of foot deformity resulting either from congenital or physical injury were excluded to construct standard measurement for Garo ethnicity. Bimalleolar breadth was measured using slide calipers. The subjects were asked to stand with weight distributed equally on both feet. The legs were perpendicular to the feet. The maximum right and left bimalleolar breadth for male was found 8.32cm and 8.34cm respectively; minimum was 5.42cm and 5.43cm respectively. In case of female maximum right and left bimalleolar breadth was 9.63cm and 9.64cm respectively and minimum was 5.41cm for both feet. In this study, difference of mean bimalleolar breadth of male and female were statistically analyzed by using students unpaired 't' test which was highly significant. Correlation was done with stature and found significant in case of male but non-significant in case of female.