Attention-Deficit/Hyperactivity Disorder (ADHD) is associated with pragmatic language impairments in children, but less is known about the communicative abilities of adults with ADHD, especially when using a second or third language. In this study, we developed a questionnaire to collect self-report measures of a set of pragmatic skills in a person’s first, second and third language, comparing adults with and without an ADHD diagnosis. One hundred seventy-nine multilingual adults with (N = 91)…