Plastic production has become a global concern, including in Bangladesh. Among all types of plastic products, single-use plastic is considered treacherous and the most responsible for damaging the natural environment. To replace plastics on a daily usage basis, the entrepreneurs of Bangladesh have reiterated some initiatives to manufacture and promote plastic alternatives. This study aims to assess the market potential, existing challenges, and users’/customers’ perceptions of the plastic alternative industry in Bangladesh. Key informant interviews (KIIs) with structured questionnaires were conducted among 15 plastic alternative entrepreneurs and 30 customers through online platforms. The framework analysis method was used to analyse and interpret the collected data. Despite highlighting some challenges, plastic alternative entrepreneurs contribute significantly to replacing plastic products, and the market potential is quite promising for this industry. Moreover, this study portrays an efficacious inclination of consumer behaviours towards using plastic alternatives. By following the concept of the green economy, the entrepreneurs of the plastic alternative industry in Bangladesh are gradually able to replace plastic products and contribute toward building a sustainable city