The essential oils of Kaempferia angustifolia and Kaempferia rotunda were obtained by hydrodistillation of the rhizomes of the plants. The constituents of the oil were identified by using GC- MS and retention indices. The oils of K. angustifolia was found to be rich in sesquiterpenoids. The major constituents were camphor (21.1%), together with borneol, borneol formate, b- Maaliene, a-guaiene, caryophyllene oxide, vellerdiol and ledol. Essential oils of K. rotunda consisted of monoterpenoids (22.5%) and sesquiiterenoids (6.8%). However the major constituent was identified as an aromatic ester, benzyl benzoate (49.8%).