Ralph Douglas Townsend (born 13 December 1951, in Nedlands, West Australia) is an educational consultant. He was Chairman of Prep Schools Trust (2017-2022) and Special Adviser to the President of Keio University and President of Keio Academy of New York (2017-2021). He currently serves on the International Development Group of the Jesuit Refugee Service. He was Headmaster of Winchester College (2005-2016). He was previously Headmaster of Oundle School (1999-2005) and before that Headmaster of Sydney Grammar School (1989-1999).