Arthur Ernest Cook (6 September 1883 – 10 April 1945) was an Australian politician.

He was born in Sandhurst to engine driver Robert Cook and Mary Daley, and attended state school before becoming a hairdresser.

On 28 April 1909 he married Mary Victoria Rocke, with whom he had four children.

Cook served as vice-president of the Bendigo Trades Hall Council and was on the Labor Party's state executive from 1916 to 1918.

One of his grandsons, Esmond Curnow, later served in the Assembly.