Purpose: The aim of this study was to explore peer support, resilience, and clinical performance among nursing students during their clinical practice and identify factors influencing their clinical performance. Methods: A descriptive survey was conducted with third- and fourth-year nursing students. Data on general characteristics, peer support, resilience, and clinical performance were collected using self-administered questionnaires. Data analysis was performed using SPSS/WIN 29.0. Results: In total, 136 nursing students participated in this study. Clinical performance showed a positive correlation with peer support (r=.67, p<.001) and resilience (r=.79, p<.001). Hierarchical multiple regression analysis revealed that satisfaction with clinical practice was a significant predictor of clinical performance in the first step (β=.57, p<.001). In the second step, resilience (β=.54, p<.001), peer support (β=.22, p=.004), and satisfaction with clinical practice (β=.14, p=.043) emerged as significant predictors, collectively explaining 65% of the variance (F=83.15, p<.001). Conclusion: Clinical practice satisfaction, peer support, and resilience significantly improved nursing students' clinical performance. These findings underscore the importance of prioritizing peer support and resilience in nursing education programs and implementing strategies to strengthen these factors.