The declining employee performance at PT. Ocean Centra Furnindo Medan during the 2023–2025 period, accompanied by increasing absenteeism, indicates performance issues potentially related to organizational communication, the physical work environment, and work discipline. This study aims to examine and analyze the partial and simultaneous effects of these three variables on employee performance. The theoretical framework employs Human Resource Management as the grand theory, Performance Management as the middle theory, and theories of organizational communication, physical work environment, work discipline, and employee performance as applied theories. This study adopts a quantitative descriptive and associative approach using a saturated sampling technique involving all 50 employees. Data were collected through questionnaires, interviews, observations, and documentation and analyzed using multiple linear regression, t-tests, F-tests, and the coefficient of determination. The results show that organizational communication, physical work environment, and work discipline have positive and significant effects on employee performance, both partially and simultaneously. The Adjusted R Square value of 0.667 indicates that these variables explain 66.7% of the variation in employee performance. Therefore, improvements in these three factors can contribute to enhancing employee performance.
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