The volatiles obtained from the phyllodes of Acacia howittii have been analyzed by GC and GC/MS and found to contain 1-hexen-3-one (8-21%) and 1-octen-3-one (36-46%) as principal components. The major terpenes present in the oil were α−pinene (0.6-7%) and β−caryophyllene (2-5%). The yield of volatiles was less than 0.1%.