As concerns about environmental degradation, plastic pollution, and climate change escalate, bioplastic research has emerged as a crucial area of focus both nationally and internationally. Bioplastics—plastics derived from renewable biological resources—represent a potential solution to the environmental issues associated with traditional petroleum-based plastics. The process of turning organic waste into environmentally acceptable materials by turning fish and crustacean waste into bioplastics is a creative and sustainable method of waste valorization. As one of the biggest fish producers in the world, India produces enormous amounts of fish scales and crab shells, which are frequently thrown away as waste. Biomolecules such as collagen, chitin, and chitosan, which are abundant in these materials, have great potential as raw materials for the production of biodegradable plastics. Utilizing this trash reduces pollution and supports the circular economy strategy, which reduces reliance on fossil fuels by repurposing byproducts as useful resources. With their robust structural qualities and efficient biodegradability, bioplastics derived from fish and crustacean waste are excellent substitutes for traditional plastics. Chitosan-based bioplastics have wide-ranging applications, including food packaging, water treatment membranes, medical devices, and agricultural films. Their antimicrobial properties make them particularly valuable in food preservation and biomedical applications, where they can inhibit the growth of bacteria and fungi. While bioplastics from fish and crustacean waste offer significant environmental benefits, it is important to consider the environmental impact of the entire production process. The extraction of biopolymers such as chitosan and gelatin requires the use of chemicals and energy, which can contribute to environmental pollution if not managed properly. Additionally, the biodegradability of bioplastics depends on environmental conditions such as temperature, humidity, and microbial activity. Further research is needed to optimize the production processes and ensure that bioplastics degrade efficiently in different environments. The development of bioplastics from fish and crustacean waste represents a significant innovation in waste valorization and sustainability. By utilizing renewable and underutilized resources, this approach addresses the twin challenges of plastic pollution and seafood industry waste. As research and development continue to improve the properties and scalability of bioplastics, they are likely to play an increasingly important role in the transition to a circular economy and a more sustainable future. By promoting the manufacturing of bioplastic from marine debris, India may establish itself as a global leader in sustainable waste recycling, tackling pollution and promoting economic growth with environmentally benign solutions.