One of the critical issues in the assessment of autism spectrum disorder is the behavior exhibited in various developmental contexts, and so the assessment by different informants is important in understanding this disorder. The aim of this study was to analyze parent-teacher agree-ment on executive functioning assessment in a sample of 43 children with autism spectrum disorder with level 2 severity. For this purpose, scores given by parents and teachers on the BRIEF subscales were compared, and the relationship between these scores was analyzed. The results obtained indicated, first, statistically significant differences between parents and teachers on all the subscales, with teachers reporting greater executive dys-function in all cases. Second, there were no statistically significant correla-tions between the scores given by the two informants on almost all the subscales. Overall, these results point to the different perceptions of par-ents and teachers regarding the executive functioning of children with ASD, which may reflect the relevance or role of these functions in the con-text where they are assessed.