abstract the essential oils obtained from the dried leaves, flowers, stem and root of phlomis olivieri benth. (labiatae) were analyzed using gc and gc/ms. thirteen components were identified in the oil of leaf with germacrene d (58%), -pinene (10.4%) and bicyclogermacrene (4.4%) as main constituents. ten compounds were identified in the oil of flowers with germacrene d (48%), -pinene (19.7%) and -selinene (10.1%) as main components. ten compounds were characterized in the oil of stem with germacrene d (57%), -pinene (8.6%) and 2-pentadecanone (6.5%) as main constituents. in the oil of root, germacrene d (35%), -pinene (12.6%) and spathulenol (6.6%) were found as main constituents. all oils consist of monoterpenes, sesquiterpenes and aliphatic compounds.