Roy Lancaster Curthoys CMG (4 October 1892 – 24 September 1971) was an Australian journalist and newspaper editor. Curthoys was born in Ballarat and educated in Perth. He began his journalistic career on the Daily News in 1910, later transferring to the West Australian (1916), The Herald (1919), and The Argus (1920). He was a "leading member" of the Australian Journalists Association (AJA) and helped establish journalism courses at the University of Western Australia and University of Melbourne. In 1922 he travelled through Europe and North America as a "special representative" of the AJA, learning about journalism education.