Introduction: Renal size measurement using ultrasound is a valuable parameter in the diagnosis of renal function and its diseases. This study is aimed to determine the differences of mean and correlation between the renal length (RL), renal width (RW) and renal parenchymal thickness (RPT) with age, gender and anthropometric measurements among indigenous population in Malaysia. Methods: A prospective cross-sectional study was carried out in this sur- vey. Abdominal sonography was performed on 240 subjects. Sonography of the renal size included measurements of RL, RW and RPT. A portable ultrasound machine (Mindray DP-50, Shenzen, China) with a 3.5 MHz convex probe was used in this study. An independent-samples t-test, one-way ANOVA and Pearson's correlation coefficient test
were performed in statistical analysis. Data were analyzed using SPSS program version 22.0. A P-value of