Abstract The oils from Austrocedrus chilensis, Fitzroya cupressoides and Pilgerodendron uviferum leaves collected in the Argentinian Patagonia were isolated steam distillation yielding 0.50%; 0.22% and 0.19% of essential oils, respectively. Leaf oils were analyzed by GC and GC/MS. The main constituents of each oil were: (i) Austrocedrus chilensis oil: α-pinene (535%), myrcene (14.9%) and δ-3-carene (11,9%); (id Fitzroya cupressoides oil: α-pinene (40.8%), spathulenol (5.6%), (Z)-nerolidol (5.5%), cc-cadinol (4.4%) and cis-calamenene (4.4%); and (iii) Pilgerodendron uviferum oil: α-pinene (38.0%), α-bisabolol (13-0%), epi-α-muurolol (12.0%), δ-cadinene (11.9%), limonene (8.0%), β-pinene (3.4%) and myrcene (3.2%).