|To meet the demands of various stakeholders and to comply with environmental legislations, businesses started to look at their supply chain to enhance their overall sustainability profile. Supply chain operations with sustainability awareness have become an important issue in recent years and make the sustainable supplier performance evaluation and selection process as a central concept of sustainable supply chain management. In this study, supplier selection problem is modelled within the context of sustainable supply chain based on the triple bottom line concept. This paper examined the problem of identifying best supplier based on sustainability principles for supplier selection operations in supply chains. Due to it’s multi-criteria nature, the sustainable supplier selection process requires an appropriate multi-criteria analysis and solution approach. Fuzzy TOPSIS method is applied for the performance evaluation and selection of an appropriate sustainable supplier of an energy company. According to the results, Supplier1 is recommended with low risk as the best sustainable supplier alternative.