An experimental work was conducted to determine mass, volume and density of different olive varieties. the selected varieties included oil producing varieties (Kronaki, Coratina and Arab queen)  and duel purpose varieties (Watiken, Picual and Manzanillo). The results show that, the mass of olive fruits was ranged from (1.17 to 3.34 g) and from (3.349 to 6.19 g) for the oil producing and duel purpose varieties respectively. Wile it was ranged from (0.25 to 0.617 g) and from (0.635 to 0.756 g ) for their pits. The fruits measured volume was ranged from (1.085 to 3.165 cm³) for the oil producing varieties and from (3.09 to 4.195 cm³) for the duel purpose varieties. On the same time the measured and the calculated fruit volumes of different studied varieties could be related and expressed as V _act = 0.524 LD². The fruit real density was ranged from (0.934 to 1.113 g/cm³) and from (0.994 to 1.109 g/ cm³) for oil producing and duel purpose varieties. While the corresponding values of bulk density was ranged from (579.268 to 626.560 kg/m³) and from (600.79 to 642.767 kg/m³) respectively.