This study explores the reading strategies (RSs) of bilingual and monolingual young learners in their first and second languages (L1 and L2, respectively)--either Kazakh or Russian as the L1 and L2--and English as a foreign language (L3). It also examines the influence of RSs on the learners' performance on reading comprehension tests in the three languages. The test results showed significant differences in L1, L2, and L3.The results for reading achievement were generally poor but significantly different between the monolinguals and bilinguals. No significant gender differences were found in the reading test results or in the use of reading strategies while reading. However, the analysis indicated that although the probability of using other strategies while completing the tasks in L1, L2, and L3 was clear, more bilingual learners used advanced RSs than monolinguals. The findings on RSs provide an in-depth understanding of the differences between young, bilingual, and monolingual Kazakhstani learners in their use of RSs while reading in their respective languages. The results have significant implications for practice, suggesting placing more emphasis on developing reading strategies while learning how to read in the first and second languages.