Social-emotional impairments are considered core symptoms of Autism Spectrum Disorder (ASD). Although numerous interventions have been developed to remediate the social deficits in children with ASD, few have been designed to meet the needs of youth. Given research demonstrating relations between emotional intelligence (EI) and social outcomes in adults with Asperger Syndrome (AS), the current study examined both trait and ability EI to elucidate the nature of the EI strengths and impairments in youth with and without ASD. Twenty-five adolescents with ASD and 25 adolescents without ASD aged 13 to 17 years completed measures of ability and trait EI. Findings suggest that aspects of both trait and ability EI were significantly weaker in adolescents with ASD compared with typically developing adolescents. Implications, limitations, and future research are discussed.