Considering its export-oriented performance and the close relationship with various branches, the Turkish leather industry is one of the most important sectors of Turkey. Turkey is also a well-known leather and leather products manufacturer in the global market. Thus, Turkish leather industry is faced with a constant competition pressure. Analysing the developments and the factors that are driving the industry, and contributing industry’s sustainable competitive advantage are important for both the industry and the country's economy. In this study, analysis of Turkish leather industry’s competitiveness was discussed by using Porter's Diamond Model. For this purpose, both primary and secondary research methods have been utilized. Interviews consisting of open-ended questions prepared in the light of data surveys were made with two researchers who are experts in leather industry and three large-scale leather apparel companies in Izmir and Istanbul. As a result of the analysis, the main elements of the competition structure of the industry were described under the titles of Input conditions, Demand conditions, Relevant and Supporting authorities, Strategy and competitive structure of company, State activity and chance by analysing the results of respondents; and various suggestions have been made in order to let Turkey have a more competitive position on the world leather industry platform.