Autistic adults experience disproportionate rates of co-occurring mental health problems. Psychotherapy has been recognized as an appropriate treatment approach, but evidence is limited. Researchers used a qualitative research paradigm to explore the experiences of mental health providers who provide psychotherapy to autistic adults. The Enhanced Critical Incident Technique was used to interview 13 mental health providers regarding perceptions of facilitating therapy with autistic adults. This research highlights challenges to providing psychotherapy to autistic adults while also illuminating ways that mental health providers have worked to ameliorate such challenges and create positive experiences in therapy. This research also contrasts therapy for autistic adults relative to the general population. Practice recommendations and suggestions for future research are offered.