Background: Quality of working life (QWL) is a multidimensional concept that describes an employee’s satisfaction with several work life elements. Quality of nurse working life is considered as a stepping stone for health services improvement, as it affects job satisfaction which, in turn, affects the performance of nurses. Understanding and investigating the nurses’ quality of work life in Saudi Arabia is needed for improvement actions. Objectives: This study aimed to examine the quality of nursing work life (QNWL) among nurses working in Saudi Arabia and to determine the association between demographic variables and quality of work life among nurses. Methods: It was a cross-sectional design using Brooks’ quality of nursing work life survey. It was distributed among nurses over the kingdom of Saudi Arabia. Results: There were 860 nurses participating in the study. The mean total score for the participants was 174.5+/− 30.3, indicating moderate to high QNWL. The highest score achieved by the nurses was for the work world context (4.29) while the lowest score was for work design dimension (3.92). The study revealed that nationality, income, and shift duration, having a dependent person, and having family accompany the nurse as significant factors affecting the quality of work life among the nurses. Conclusion: A novel contribution of the current study was that the demographic characteristics of the participants, including nationality, income, having family accompany the nurse, having an independent child, or spouse or parents, and shift duration, tended to have a statistically significant correlation with QNWL. The comprehensive results of this study have practical implications whereby authority bodies can create regulatory plans for enhancing satisfaction and performance over the sole utilization of job satisfaction measurements and can thereby improve nurses’ retention and turnover rates.