Richard Michael Fox (1891–December 1969), better known as R. M. Fox, was a journalist and historian of the Irish left. Fox was born in Leeds in 1891, the second of four sons to a schoolteacher mother and engineering workman father. His parents were active in the Co-operative Movement, and as a young man Fox joined the Socialist Party of Great Britain and the Industrial Workers of the World. During "The Emergency", the Irish Directorate of Military Intelligence was concerned about The Irish Press having Fox, Maire Comerford, Brian O'Neill, Geoffrey Coulter, and Tom Mullins on its staff.