In the retail industry, where there is intense competition, supplier relationship management is effective in many issues from stock management to working capital management. In this respect, supplier relationship management and supplier selection are extremely important for businesses. In the retail food sector, features such as a variety of durable and rapidly consumed products, speed and, flexibility in providing products stand out. For these reasons, it is important to work with suppliers who can provide flexibility and speed as well as providing products at low cost. In the retail sector, the characteristics of suppliers such as selling quality and cost-effective products, being fast and flexible have gained importance. For this reason, working with the right suppliers provides businesses with significant strategic advantages over their competitors. Supplier selection is a multi-criteria decision problem in which many qualitative and quantitative criteria are effective. In this study, an integrated decision model is proposed in order to facilitate supplier selection in a local retail firm. In the proposed model, the importance weights of the criteria that are effective in supplier selection with the Best Worst Method (BWM) were determined and alternatives were evaluated with the fuzzy TODIM (TOmada de Decisão Iterativa Multicritério) method. According to the analysis results, it is seen that the proposed decision model can be applied in supplier selection.