Autistic individuals are at increased risk of experiencing various forms of victimization during their lifespan. This study analyses the self-reported prevalence of bullying victimization in autistic pre-adolescents and those with subthreshold autistic traits in comparison with peers without neurodevelopmental conditions. The sample was comprised of 323 participants (11 and 12 years old; 45 with autism or subthreshold autistic traits) from Spanish general education schools. The assessment protocol included psychopathological (autism characteristics and co-occurrent problems), cognitive and academic characteristics. Bullying victimization was self-reported by the pre-adolescents themselves using the Bullying and School Violence Questionnaire ("Acoso y violencia escolar"). Autistic participants (57.9%) and those with subthreshold autistic traits (26.9%) showed a higher rate of bullying victimization in comparison with their peers (18.3%). Bullying rates were more frequent and severe and were characterized by intimidation and social exclusion behaviours. These problems were associated with greater intensity of restrictive and repetitive behaviours and with more co-occurring behavioural and emotional problems. We did not find any association with other individual or family factors. Our data reveal the greater risk of bullying behaviours among autistic young people and those with subthreshold autistic traits, which implies the need for detection and establishment of protocols to prevent consequences for their mental health and quality of life.