Majority of the main stream literature provides the evidence that commitment to service quality (CSQ) is vital in ensuring excellent service quality. Past studies on the commitment to service quality are also limited only to the management level of analysis in service industries so the main focus of this study is to examine the relationship between transformational leadership style and commitment to service quality among the medical staff of Sindh Pakistan. A total number of 317 questionnaires were received through survey questionnaire from medical staff in four cities of Sindh, Pakistan. The data was analyzed using SmartPLS 2.0. The findings of this study indicate a significantly positive relationship between transformational leadership style and commitment to service quality. The managerial implications for the top management of hospitals are discussed. Policy makers, leaders at hospital, they motivating the staff to towards commitment to service quality. Results focused on how transformational leadership style can be used to manage commitment to service quality.