--- - |2+ A high percentage of children with Autism Spectrum Disorder (ASD) show elevated challenges in learning to read. We investigated longitudinal predictors of reading skills in 41 children diagnosed with ASD. All children completed measures of precursor literacy skills at the age of 4–5 years, including phonological awareness, letter sound knowledge, rapid automatic naming, name writing, and phonological memory (digit span), along with measures of word‐ and passage‐level reading skills in their first year of formal schooling. Nonverbal cognition and letter sound knowledge accounted for 53.4% of the variance in regular single word reading at school age, with letter sound knowledge a significant individual predictor. Overall, 18 children showed reading ability scores in the average range on a standardized test of passage‐level reading ability, whereas 23 children performed below expectations. These groups differed significantly on all precursor literacy measures (at ages 4–5), except autism symptoms based on parent report. Group membership was significantly predicted by preschool receptive vocabulary, name writing, and rapid automatic naming, with high sensitivity and specificity. These results are discussed in reference to the literature describing early literacy predictors for typically developing children, highlighting key areas for future intervention and support. Autism Res 2018. © 2017 International Society for Autism Research, Wiley Periodicals, Inc. Lay summary Children with autism are at increased risk of persistent reading difficulties. We examined whether preschool reading‐related skills linked to later reading ability. Performance on the following three tasks administered at preschool predicted children who showed early reading success versus below expectations in their first year of school: vocabulary, name writing, and rapid naming of familiar objects and shapes. These results can inform future interventions. - Autism Research, EarlyView.