This study investigates the effects of family-supportive supervisor behaviour (FSSB), work-life balance, job satisfaction, motivation, and job performance among married private employees in Indonesia. Data was collected from 206 married private employees using an online survey and analyzed using Structural Equation Modeling (SEM) with LISREL 8.80 software. The findings indicate that FSSB, job satisfaction, and motivation positively influence job performance. FSSB also positively affects motivation, while work-life balance and motivation positively influence job satisfaction. However, work-life balance does not significantly affect job performance. Mediation analysis revealed that motivation mediates the relationship between FSSB and job performance, and job satisfaction mediates the relationship between motivation and job performance. The study highlights the importance of FSSB in enhancing motivation and job performance, particularly for married employees. It also emphasizes the role of work-life balance in improving job satisfaction. The research contributes to the literature by demonstrating the positive impact of FSSB on employee motivation and performance. Limitations include the focus on private sector employees and the exclusion of certain demographic groups. Future research should explore additional variables such as work-family conflict. The study underscores the need for organizations to implement supportive leadership practices and work-life balance policies to enhance employee satisfaction and performance.This study investigates the effects of family-supportive supervisor behaviour (FSSB), work-life balance, job satisfaction, motivation, and job performance among married private employees in Indonesia. Data was collected from 206 married private employees using an online survey and analyzed using Structural Equation Modeling (SEM) with LISREL 8.80 software. The findings indicate that FSSB, job satisfaction, and motivation positively influence job performance. FSSB also positively affects motivation, while work-life balance and motivation positively influence job satisfaction. However, work-life balance does not significantly affect job performance. Mediation analysis revealed that motivation mediates the relationship between FSSB and job performance, and job satisfaction mediates the relationship between motivation and job performance. The study highlights the importance of FSSB in enhancing motivation and job performance, particularly for married employees. It also emphasizes the role of work-life balance in improving job satisfaction. The research contributes to the literature by demonstrating the positive impact of FSSB on employee motivation and performance. Limitations include the focus on private sector employees and the exclusion of certain demographic groups. Future research should explore additional variables such as work-family conflict. The study underscores the need for organizations to implement supportive leadership practices and work-life balance policies to enhance employee satisfaction and performance.