Abstract The essential oil obtained by hydrodistillation from fruits of Tordylium ketenoglui H. Duman et A. Duran (Umbelliferae, Apiaceae) was analyzed by GC and GC/MS. In total, seventy-seven compounds were characterized, representing 91.6% of the oil. The main constituents were octyl octanoate (28.9%), octanol (11.6%) and bornyl acetate (7.2%). Key Word Index: Tordylium ketenoglui Umbelliferaeessential oil compositionoctyl octanoateoctanol