Reading comprehension is regarded as a vital skill in attaining proficiency and widening knowledge in different subject. It is the core literacy skill that enables learners to understand, interpret, and evaluate written texts. Reading comprehension is a fundamental skill that supports learning across subject areas, yet many learners continue to struggle with understanding and interpreting texts, which may affect their academic achievement. The study examined the relationship between reading comprehension and English academic performance among Grade 10 students of Can-avid National High School. This study employed a descriptive-correlational design which suitable to know the relationship of the two variables. Results revealed that there is a relationship between reading comprehension and English academic performance among Grade 10 students of Can-avid National High School. The relationship between reading comprehension and Academic Performance of Grade 10 Students resulted to <.001 value of Pearson r product which denotes positive relationship. Recommendations are made for educators to design programs and implement activities in the classroom to further develop good reading comprehension of the students which aligned to the learning competencies of the Department of Education.