This anthropometric study was designed to construct data of 5 to 10 years aged Bangladeshi children regarding tibial length and an attempt has been made out to grow interest among the researchers for future study of different country. This study will be helpful to compare the data with the data of the people of other races. This cross sectional descriptive type study was conducted among Bangladeshi children (5-10 years aged) at different areas of Mymensingh district. This study was performed on 109 Bangladeshi children among them 70 was male and 39 was female children and conducted in the Department of Anatomy, Mymensingh Medical College, Mymensingh. Nonrandom purposive sampling technique was taken for sample collection of this study. Any kind of leg and foot deformity due to either from congenital anomaly or physical injury was excluded. Tibial length was measured using handmade sliding scale. The mean length of both tibia of 5, 6, 7, 8, 9 and 10 years aged male children were 19.66±1.59 cm, 21.56±1.88 cm, 23.94±3.28 cm, 24.73±1.64 cm, 26.50±2.34 cm and 27.02±2.12 cm respectively and those of female children were 21.54±1.94 cm, 22.62±.80 cm, 24.31±.97 cm, 23.16±2.17 cm, 25.92±3.55 cm and 26.65±1.91 cm respectively. Comparison of tibial length between male and female children was done by unpaired Students 't' test. Comparison of differences of mean tibial length between male and female children was statistically non- significant except in case of 5 years old age group, it was significant. Data were statistically analyzed using Microsoft excel and SPSS software. The results of this study will be useful in anatomy, orthopedics, forensic science, plastic surgery, radiology, podiatry, archeology, anthropology.