This study aimed to explore school psychologists' use of evidence-based practices (EBP), specifically in the area of social skills training, for students with an autism spectrum disorder (ASD). Participants were 220 school psychologists practicing in public school settings who provided social skills training to students with ASD. Participants were recruited through e-mail solicitations and completed surveys administered on-line. Results indicated that 47% of the participants reported that their graduate program did not provide courses including content addressing social skills training for students with ASD, and 58% did not receive training on the topic during their internship. The most and least frequently endorsed EBP reported were the provision of clear and measurable treatment objectives and regular communication with parents, respectively. Greater use of EBP was reported when school districts perceived implementing EBP as important. Implications of findings for training programs of school psychologists, school districts, and individual school psychologists are discussed, as well as implications for future research.