The agricultural segment produces a substantial quantity of agro-waste, the bulk of which is not effectively used and is causing jeopardy to both human health and the environment. Hence, agro-waste management in the agricultural sector has become a significant concern. Because agro residues are rich with crucial promising novel biologically active phytochemicals, consuming this agro-waste as a starting material in creating new products, especially pharmaceutical products, is an area of great interest. Besides, the exploitation of agro-waste in the development of pharmaceutical products also backs the goal of sustainable development in a circular economy. Pharmaceutical product development based on novel biologically active phytochemicals from agro-wastes has been widely researched in recent years, such as wound patches for wound dressing application. Developing an environmentally friendly green wound patch using agro-waste will contribute to the proper management of agro-waste and reduce environmental pollution. This review addresses the possibilities, advantages and prospects of agro-waste applications for wound patch development, allowing agro-waste use in pharmaceutics.