Students with autism spectrum disorder (ASD) experience anxiety at higher rates than their neurotypical peers, which can negatively impact school performance. Anxiety symptoms for these students can be challenging to identify because they mimic diagnostic characteristics. As key intervention team members, school-based mental health professionals can assist with identifying and addressing anxiety in students with autism. Specific evidence-based strategies for school-based mental health professionals are detailed to support efforts to intervene successfully with students with autism who experience anxiety.