Today, the development of start-up businesses active in creative industries has become one of the important axes of economic growth and sustainable development due to their reliance on knowledge, innovation, and cultural capital. However, increasing environmental pressures and the need for optimal use of resources have made it more necessary to pay attention to circular economy strategies in these businesses. The present study was conducted with the aim of identifying, evaluating, and prioritizing circular economy strategies in start-up businesses in Iran’s creative industries. This study is applied in terms of its purpose, descriptive-survey method, and multi phases quantitaive in terms of its approach. To this end, key circular economy strategies were extracted based on previous studies, evaluated, and Classified using Fuzzy Importance-Performance Analysis (FIPA), and prioritized using the Borda-SWARA hybrid approach. Research data were collected through a questionnaire with the participation of 136 managers and business owners from 124 startup businesses active in different subsectors of Iran’s creative industries. The results showed that the strategy of "circular business models" with a final weight of 0.22 ranked first, followed by "design for longer product use" with a weight of 0.21, "support services for circular entrepreneurship" with a weight of 0.20, "recovery systems for renovation and recycling" with a weight of 0.18, and "maintenance and repairs" with a weight of 0.17, ranked second to fifth, respectively. The results of this research can provide a basis for policymaking, designing support programs, and targeted allocation of resources in order to develop the circular economy and promote sustainability in the country's creative industries.