Abstract Sixty constituents were identified in essential oil from aerial parts, leaves, flowers and roots of Artemisia persica Boiss. from Iran. The oils were obtained by hydrodistillation and the composition of the oils were analyzed by a combination of GC and GC/MS. The oils obtained from aerial parts were rich in (Z)-ocimenone (39.6%), ascaridole (16.0%) and α-terpinene (10.0%). The major components of the leaves oil were cis-sabinene hydrate (38.8%) and terpinolene (13.3%). The flowers oil was characterized by higher amounts of cis-sabinene hydrate (41.2%) and ethyl 2-nonynoate (24.4%). β-Cedren-9-one (76.7%) was the predominant compound in the roots oil. Key Word Index: Artemisia persica Compositaeessential oil composition(Z)-ocimenoneascaridoleα-terpinene cis-sabinenehydrateterpinoleneethyl 2-nonynoateβ-cedren-9-one