An autism spectrum condition is considered a lifelong condition. Affected individuals typically experience poorer psychosocial outcomes compared to non-autistic individuals. However, in Southeast Asian countries such as Malaysia, research about autism spectrum conditions beyond the early childhood context is scarce, and therefore, the prevalence and psychosocial outcomes of young adults with autism spectrum conditions remain largely unknown. This study aims to explore self-reported autistic traits among university students in Malaysia, and their relation to emotion regulation, stress, self-efficacy and quality of life. Data from 2732 students revealed that 0.3% of the students reported having an autism spectrum condition diagnosis, while 2.5% reported that they suspected having an autism spectrum condition, but did not obtain a formal diagnosis. This indicates that an estimated 2.8% of students might have a diagnosed or suspected autism spectrum condition. These two categories of students were found to have poorer self-efficacy, higher perceived stress and poorer quality of life, as compared to their peers. However, these students were not significantly different from their peers in emotion regulation. Overall, the findings pointed to negative psychosocial outcomes associated with autism spectrum condition and culture-specific associations between autistic traits and psychosocial outcomes.