Apple ( Malus domestica Borkh . ) is the second most important fruit next to banana and Iran ranks fourth in the production of apple in the world. Among Iranian native apples, ‘Golab’ is one of the most popular cultivars due to its precocity and extraordinary flavor. Nevertheless, very short storage life of this cultivar leads to a short window of its availability in the market place. Therefore, this study was conducted to evaluate the effect of six apple rootstocks including ‘Golab Kohanz’ seedling, B9, M9, M26, MM106, and MM111 on fruit quality attributes and storability of ‘Golab Kohanz’ apple. Apple fruits from the Agricultural Research Orchard in Semirom, Isfahan were harvested at physiological maturity and stored at 2°C for four months to evaluate some physicochemical attributes. The experiment was arranged as a randomized complete block split plot design with rootstock as the main plot and period of storage as sub-plot, with three blocks (replications). A different study was conducted to evaluate the effect of rootstocks on fruit quality attributes at commercial maturity, in a randomized complete block design with three blocks (replications). Results of the first experiment indicated that rootstock had significant impact on all tested parameters. Firmness, soluble solids concentration (SSC) and malic acid (titratable acidity or TA) were highest in the fruits from trees on M26 and M9 but lowest in those on MM111 and MM106 rootstocks. Fruits from trees on M26, MM106, M9, seedling and MM111 rootstocks had the lowest levels of SSC/TA but those on B9 had the highest levels of this ratio. Fruit water loss was highest in trees on B9 and was the least in trees on MM106, MM111 and seedling rootstocks. Trees on M26 and M9 had higher starch index whereas MM106 and MM111 had the lowest. The effect of storage duration (storage time) on most quality attributes was significant. With the exception to the case in SDP, there were no significant interactions between rootstock and storage duration for any of the tested quality attributes. In the second experiment, there were no significant effects of rootstock on quality attributes when fruits were harvest at the maturity stage. The results have shown that fruits of trees on M26 and M9 rootstocks had the desired fruit size. The highest fruit Ca and K and the lowest fruit K/Ca ratio were observed in the trees on M26 and M9 rootstocks. In conclusion, M26 and M9 rootstocks had positive effects on fruit size, fruit Ca and K concentrations, fruit color and storability of ‘Golab Kohanz’ apple