Exploitation of natural materials and solid waste in the preparation of polymer-natural fiber composites (PFCs) has been aimed at recent decades. A PFC is composed of a polymeric matrix and natural fiber filler; it is considered environmentally friendly materials as it can consume abundant natural fibers, such as agriculture waste from many crops and wood flour obtained from the furniture industry, in addition to polymer waste. The hybrid formulations have improved performance by enhancing the major characteristics that attain some of the sustainable development goals. This review discusses the structure composition, and types of PFCs. The related properties, additives, and processing techniques are also summarized. The recommended materials can be applied in construction, car accessories, building units, etc. Due to sustainable and environmental concerns, the preparation and development of PFCs are of interest. This work also highlights the deficiencies in conventional ways of manufacturing and provides suggested perspectives on new techniques to maximize the benefits of the related sustainable composites.