The aim of this study was to evaluate the quality and level of statistical graph reading skills of elementary school teachers. This study used a mixed approach, was descriptive, and the content analysis method was applied. The sample included 21 participants, 19 women and 2 men. The teaching experience mean was equal to 11.2 years. An instrument with three items related to the reading of statistical graphs was applied. The teachers surveyed showed quantification and calculation errors, poor understanding of graph core components, difficulties reading and analyzing graphs, and limited skills to explain the visual effects produced by scale modifications. In conclusion, the elementary school teachers surveyed lacked both knowledge of statistical graph core components and skills to analyze statistical graphs, which is a common and recurrent subject in the primary education curriculum.