This study investigated the role of oral reading fluency in second language reading. Two hundred and fifty-five high school students in South Korea were assessed on three oral reading fluency (ORF) variables and six other reading predictors. The relationship between ORF and other reading predictors was examined through an exploratory factor analysis (EFA). Next, the contribution of ORF to silent reading comprehension was investigated through multiple regression analyses (MRA) with ORF variables as predictors of reading comprehension. EFA identified two factors (fluency and comprehension) and showed that passage reading fluency crossloaded with both factors. MRA results indicated that the three ORF variables collectively explained 21.2% of variance in silent reading comprehension. Oral passage reading fluency alone explained 20.9% of variance in silent reading comprehension. After controlling for pseudoword reading and word reading fluency, oral passage reading fluency still accounted for an additional 12.4% of the remaining reading variance. (Contains 8 tables.)