Self-efficacy forms a major factor that influences many life aspects, as a re-sult, it has been researched by many psychologists and educators worldwide from different perspectives. Embracing the context of Bandura's Self-efficacy Theory as a theoretical framework, this quantitative empirical research paper introduces an overview of the role that self-efficacy plays in shaping higher education students' academic achievement among a diverse group of col-lege students. The diverse group comprises N=374 students who took part in this research study and responded to the General Self-efficacy Scale (GSE) to disclose the perception of their self-efficacy and the ability to perform the required academic tasks. Multiple analysis techniques including Descriptive analysis, Pearson Correlation Coefficient, t-test for independent sample, and Simple Linear Regression were conducted to achieve the paper's objectives. Data analysis demonstrated a strong positive correlation between students' general self-efficacy and academic achievement r=0,748, p<0,001. Moreover, students' self-efficacy was found as a significant predictor of students' aca-demic achievement. Findings indicated that no gender-based differences in students' general self-efficacy among higher education students. The discover-ies of this research study can be implemented in instructional designing, cur-riculum development, and college counseling services to promote students' academic achievement.