[Walter] Cresswell O'Reilly (6 June 1877 – 20 December 1954) was an Australian public servant who became Chief Commonwealth Film Censor.
During World War I he served with the Australian Imperial Force in France as a gunner and then as a warrant officer, class 1, with the Army Education Service.
In 1925 O'Reilly was nominated by the Methodist Church, the YMCA, and the Businessmen's Efficiency League as the senior Commonwealth film censor in Sydney.
[10] O'Reilly was a Wesleyan and served as a trustee of Pymble Methodist Church for over 50 years, and was a choirmaster, Sunday-school-superintendent and lay preacher.
[11] As an early conservationist he was president of the State branch of the Australian Forest League and a member of the Forestry Advisory Council.