Purpose: The article compares the chapters (areas) of the ISO 9001: 2015 quality management standard with the principles of Lean Management in order to identify opportunities for enhancing quality management systems based on this standard, both in the context of quality management and in the context of business process management. Design/Methodology/Approach: The aim of the study was to identify common areas of coexistence between Lean Management principles and the individual chapters (areas) of the ISO 9001: 2015 standard. The theoretical and cognitive objective was to conduct a substantive review of the literature and scholarly studies in the field of holistic quality management. The analysis of the presented problem revealed previously unidentified potential for applying Lean Management principles to improve the functioning of specific areas of management structured within the ISO 9001: 2015 standard. Findings: The conclusions drawn will enable enterprises operating based on the ISO 9001: 2015 quality management system to increase the likelihood of achieving both quality and economic effectiveness in individual areas, as their functioning will be enhanced by the incorporation of Lean Management principles. Practical implications: The principles of Lean Management have been presented in a form that enables their practical application in enterprises operating based on the ISO 9001: 2015 quality management system. The outcome of the conceptual work is a set of recommendations for enterprises using the ISO 9001: 2015 quality management system regarding the potential to enhance specific areas through principles derived from Lean Management. Originality/Value: The author presents opportunities for applying principles derived from the Lean Management concept in enterprises operating based on the ISO 9001: 2015 quality management system. The implementation of Lean Management principles requires actions that lead to certain changes in the functioning of specific areas within an enterprise. These changes can contribute to the widespread elimination of waste. An organizational culture based on Lean Management principles also has the potential to support or foster the development of effective and modern solutions in enterprises with an implemented and structured quality management system.