Abstract: This study reports the effects of Textured Soy Protein (TSP) incorporation at different concentrations (0, 5, 10 and 20% of total mass) on physicochemical properties of pan-fried beef Kofte (traditional Turkish meatball). The results indicated that the incorporation of TSP increased pH, a* values and total Unsaturated Fatty Acid (UFA) contents and decreased L* values, cooking loss and lipid oxidation in meatball samples (p<0.05). Addition of TSP also significantly affected some of the sensory attributes of meatballs (p<0.05). It was concluded that addition of TSP up to 10% into meatball formulation may be applied to improve the quality of meatballs without any adverse effects on the final product.