Natural fibers with polymers are becoming more and more in demand in the market nowadays, which is drawing significant interest from numerous industries. The creation of hybrid natural fiber composites has been the issue of extensive investigation. However, no studies have been conducted on how coupling agents affect the characteristics of natural fiber hybrid green composites produced with PLA, EFB fibers, and kenaf . Thus, this study investigates into the critical role of coupling agents in optimizing the characterstics of kenaf and EFB fiber hybrid green composites. This research aims to elucidate the impact maleic anhydride (MHA) coupling agent on the mechanical strength, interfacial bonding, and overall structural integrity of the eco-friendly composite materials. The findings of this study hold the promise of not only advancing the understanding of coupling agent influence on kenaf/EFB composites but also contributing to the advancement of high-performance and environmentally friendly materials for diverse applications.