Fenomena penggunaan internet di tempat kerja sering menimbulkan perilaku cyberloafing, yaitu penggunaan fasilitas internet untuk kepentingan pribadi selama jam kerja. Perilaku ini dapat menurunkan kinerja apabila tidak dikendalikan, sementara kepuasan kerja dan lingkungan kerja juga berperan penting dalam meningkatkan kinerja karyawan. Masih terdapat kesenjangan penelitian mengenai pengaruh ketiga variabel tersebut terhadap kinerja karyawan khususnya pada sektor perbankan. Penelitian ini bertujuan menganalisis pengaruh perilaku cyberloafing, kepuasan kerja dan lingkungan kerja terhadap kinerja karyawan Bank BNI KCU Kuningan. Penelitian ini menggunakan metode deskriptif dan verifikatif dengan pendekatan kuantitatif. Sampel sebanyak 87 responden ditentukan melalui teknik sampling jenuh. Analisis data dilakukan melalui uji validitas, reliabilitas, asumsi klasik, regresi linier berganda, uji F, uji t dan koefisien determinasi dengan bantuan SPSS versi 26. Hasil penelitian menunjukkan bahwa perilaku cyberloafing berpengaruh negatif signifikan terhadap kinerja karyawan, sedangkan kepuasan kerja dan lingkungan kerja berpengaruh positif signifikan. Secara simultan ketiga variabel tersebut berpengaruh signifikan terhadap kinerja karyawan. Penelitian ini menegaskan bahwa pengendalian perilaku cyberloafing perlu ditingkatkan serta memperhatikan kepuasan kerja dan lingkungan kerja guna mendukung peningkatan kinerja karyawan pada Bank BNI KCU Kuningan.

The phenomenon of internet used in the workplace often led to cyberloafing, namely the used of internet facilities for personal purposes during working hours. This behavior could decrease performance if not controlled, while job satisfaction and the work environment also played an important role in improving employee productivity. However, there was still a research gap regarding how these three variables affected employee performance, particularly in the banking sector. This study aimed to analyze the effect of cyberloafing behavior, job satisfaction, and work environment on employee performance at Bank BNI KCU Kuningan. The research method used was descriptive and verificative with a quantitative approach. The sample consisted of 87 respondents determined using the saturated sampling technique. Data were analyzed through validity and reliability tests, classical assumption tests, multiple linear regression analysis, F-test, t-test, and coefficient of determination with the assistance of SPSS version 26. The results showed that cyberloafing behavior had a significant negative effect on employee performance, while job satisfaction and work environment had a significant positive effect. Simultaneously, cyberloafing, job satisfaction, and work environment significantly influenced employee performance. The study concluded that controlling cyberloafing behavior needed to be strengthened, while job satisfaction and the work environment should be considered to support the improvement of employee performance at Bank BNI KCU Kuningan.