Abstract The essential oils obtained from the leaves and flowers from Campomanesia adamantium (Myrtaceae) collected in the Mato Grosso do Sul in the flowering stage were analyzed by GC and GC/MS. Eighty-two components were identified in the leaf oil and thirty-seven in the flower oil. The constituent major in the leaf oil was limonene (21.9%) and in the flower oil was ledol (20.9%)