This study examined the variables affecting third-year English reading proficiency at Souphanouvong University's (SKU) Faculty of Linguistics and Humanities. Finding the most important linguistic, behavioral, and psychological factors influencing pupils' reading proficiency was the goal of the study. Data were gathered using a standardized questionnaire given to participants as part of a quantitative research strategy. Nine independent factors were examined for predictive power using multiple regression analysis. The findings showed that: While reading anxiety had a negative impact, vocabulary range, grammar accuracy, reading habits, and teacher feedback were all significant positive predictors of students' English reading skill. The results showed that reading practice, coherence, motivation, and resource availability were all statistically insignificant. According to these results, enhancing kids' reading comprehension requires excellent language proficiency, regular reading engagement, and helpful teacher assistance. To improve English reading skills, the study suggests improving vocabulary and grammatical training as well as establishing classroom conditions that are encouraging and anxiety-free.