Ronald Warwick Radford AM (born 3 December 1949) is an Australian curator, who was the Director of the National Gallery of Australia (NGA) from 2004 until 2014. He was previously the Director of the Art Gallery of South Australia in Adelaide. He was born in Warragul, Victoria and studied at Scotch College, Melbourne, the University of Melbourne and RMIT University. He was an education officer at the National Gallery of Victoria in 1971 and 1972. He was director of the Ballarat Fine Art Gallery from 1973 to 1980, a position previously held by the founding director of the NGA, James Mollison.