The chemical composition of the essential oils obtained from the leaves ofEucalyptus camaldulensisDehnh.,E. citriodoraHook.,E. dalrympleanaMaiden,E. deaneiMaiden,E. delegatensisR. Baker,E. globulusLabill,E. grandis W.Hill ex Maiden,E. nitens(Deane et Maiden) Maiden,E. salignaSmith,E. tereticornisSmith,E. urophyllaS.T. Wake andE. vtminalisLabill, growing in Ethiopia were examined by capillary GC and GC/MS. The oil ofE. camaldulensiswas found to contain β-phellandrene (18.9%) and p-cymene (17.8%) while the oil ofE. citriodorawas rich in citronellal (73.3%) and citronellol (11.9%).E. dalrympleanaoil contained α-pinene (26.2%), 1,8-cineole (19.3%) and α-terpineol (12.1%) andE. deaneioil contained 1,8-cineole (41.6%) and cryptone (17.6%);E. delegatensisoil contained α-pinene (28.3%), 1,8-cineole (26.4%) and γ-terpinene (18.0%),E. grandisoil contained α-pinene (44.7%) and β-pinene (30.5%) andE. salignaoil contained α-pinene (38.5%), β-phellandrene (12.2%) and 1,8-cineole (10.6%). Oils of the otherEucalyptusspecies contained α-pinene (13.2–44.7%) and 1,8-cineole (34.5–57.5%) as major constituents.