This study examines the relationship between English learning academic performance, attitudes towards mathematics, and mathematics achievement among Indonesian college students. The participants included 381 mathematics students (Mage = 19.82, SD = 0.55) from four universities in Indonesia. The study employed self-report measures to assess English learning and mathematics achievement, as well as an attitudes towards mathematics questionnaire. Structural equation modeling was applied for data analysis. The findings indicated a positive correlation between English learning and mathematics achievement, highlighting the role of language proficiency in supporting mathematical understanding. However, attitudes towards mathematics negatively impacted mathematics achievement. Additionally, English learning achievement emerged as a mediator between attitudes towards mathematics and mathematics achievement. These implications underscore the importance of creating inclusive and supportive learning environments that cater to the diverse needs of students, ultimately fostering academic success in mathematics.