Eugene William Oates (31 December 1845 – 16 November 1911) was an English naturalist and a civil engineer who worked on road projects in Burma.
Oates was born in Sicily and educated in Bath, England.
For a time he attended Sydney College, Bath and later under private tutors.
He was a civil servant in the Public Works Department in India and Burma from 1867 to 1899.
He retired to England, where he compiled a catalogue of the birds' eggs in the Natural History Museum, and served as secretary of the British Ornithologists' Union from 1898 to 1901.He died in Edgbaston.A species of Indian snake, Typhlops oatesii, is named in his honor.