In this work attempts polypropylene/ethylene vinyl acetate copolymer (PP/EVA) blends loaded with layered double hydroxides LDH nanoparticles were prepared by melt mixing process and their thermal and dynamic mechanical properties were determined. Detailed investigations on LDH dispersion state in the polymeric matrix were conducted by transmission electron microscopy. TEM investigations revealed that the LDH nanoparticles were mainly located within the EVA phase of the blend. Also, microstructure of blends studied by SEM showed that incorporation of LDH into the blends led to reduction of dispersed domain size attributed to reduction of interfacial tension due to the filler presence. Melting temperature of PP loaded with 5 wt% of LDH was increased up to 11 oC as compared to the neat PP. Addition of LDH and PP-g-MAH as compatibilizer to PP/EVA blend increased melting and crystallization temperatures determined by DSC. DMTA studies showed that addition of LDH into the blends had no positive effect on the storage modulus of nanocomposites while, their loss modulus were higher than that of the neat PP. Moreover, the beta transition temperature of PP phase in the blends loaded with LDH and compatibilizer was about 5 oC higher than the neat PP. Time-temperature superposition was applied to obtain viscoelastic master curves at different temperatures. Creep and recovery tests at various temperatures were done. Also, viscoelastic parameters of the nanocomposites at defined temperatures were obtained by applying of Burger and Weibull models. The creep compliance master curves of studied samples were also obtained which showed that compliance of neat polymer increased after 1667 h while that of nanocomposites containing 5wt.% of LDH showed significant reduction. Keywords: polypropylene; Ethylene vinyl acetate copolymer; blends; Nanocomposites; layered double hydroxide (LDH); Dynamic mechanical properties