The chemical composition of bud and leaf oils of Syzygium aromaticum (L.) Merr. et Perry was studied by GC/MS. Thirty-six and 31 volatile compounds have been identified in the bud and leaf oils, respectively. The major components of the bud oil were eugenol (69.8%), β-caryophyllene (13.0%) and eugenyl acetate (16.1%), whereas the leaf oil contained only eugenol (78.1%) and β-caryophyllene (20.5%) as main constituents.