Abstract Water distilled essential oil from leaves of Ribes nigrum L. (Grossulariaceae) was analyzed by GC and GC/MS. The major constituents were found to be β-caryophyllene (12.9%), hexadecanoic acid (10.7%), α-humulene (10.2%) and caryophyllene oxide (9.6%). Key Word Index: Ribes nigrum GrossulariaceaeBlack currantessential oil compositionβ-caryophyllenehexadecanoic acidα-humulene