The purpose of this study was to assess the relationship between childhood obesity and gross and fine motor skill performance. Participants were 116 elementary students, consisting of 54 males and 62 females between the ages of 8 and 12 years old. Each child had their body composition indirectly measured by calculating their body mass index (BMI). The Bruininks-Oseretsky (BOT), version 2, was used to assess motor skill performance of all the participants. A correlation was used to determine if a relationship exists, with the independent variable being BMI and the dependent variable being BOT-2 point scores. An ANOVA was utilized to identify specific significant relationships, with BMI and its three classifications as the independent variable and BOT-2 point scores as the dependent variable. In addition, an ANCOVA was performed to determine if the effect of BMI level on motor skills differs by gender for fine and gross motor skills, by using gender and BMI calculations as independent variables and BOT-2 point scores as the dependent variable. Mean and standard deviation were used to express the data. For all analyses significance was determined at the .05 level of probability. The major findings in this study were (1) a relationship between BMI and fine motor skills is nonexistent, (2) a relationship between BMI and gross motor skill performance exists, (3) the effect of BMI level on motor skills does differ by gender, and (4) when comparing by gender, boys significantly outperform females.