The increase in the production of conventional plastics has generated an environmental crisis that is difficult to reverse. In response to this problem, this study proposes the development of a green composite material (GCM) from pistachio shells and a matrix based on potato starch, calcium chloride (CaCl₂) and polyvinyl alcohol (PVA). A series of steps were followed to prepare the GCM, including cleaning, drying, milling, sieving, mixing, compression molding and drying. Once the GCM was obtained, a perceptual analysis was performed and its microstructure and hardness were characterized by optical microscopy and Vickers tests, respectively. The granulometric analysis revealed that the milled sample had a high proportion of coarse particles with sizes ranging from 0.71 to 1.70 mm, which accounted for 74.98%. These particles exhibited a slightly elongated complex morphology (circularity = 0.73 ± 0.04 and aspect ratio = 1.27 ± 0.16). The GCM exhibited a compact structure with a low degree of porosity and a visual finish similar to that of wood chipboard. The perceptual analysis carried out with experts and non-experts, showed a good acceptance of the material, highlighting its innovation, stiffness. and sustainability as the most outstanding attributes. In the microstructural analysis, a heterogeneous distribution of the particles was observed, as well as the presence of irregular pores. Finally, Vickers hardness tests showed that the GCM exhibited a hardness value of 33.63 ± 16.49 HV, which is comparable to that of other biocomposite materials. In conclusion, it was possible to produce a GCM from pistachio shell waste with adequate physical characteristics, which represents an attractive and viable sustainable alternative to replace conventional plastics and   offers potential multiple applications in various industrial sectors.