Purpose of this study is to find out the relationship between customer satisfaction with service quality and customer loyalty in Islamic banking sector in Pakistan. There is positive or significant result between customer satisfaction with service quality or also positive or significant relationship between customer satisfaction and customer loyalty. In this research customer satisfaction is dependent variable and service quality or customer loyalty is independent variable. For data collection questionnaire method used.150 questionnaire distributed and 120 questionnaire collected. This research is conducted in Okara, Renala Khurd and depalpur. Finding of this study, there is week relationship between variables. I suggested further researchers should change variables or can change population or area of this study. In this study some variables used for research next research should increase variables for furthermore research. Key Words: Customer Satisfaction, Service Quality, Customer Loyalty, Bank.