Priscilla "Scilla" Elworthy (born 3 June 1943) is a peace builder, and the founder of the Oxford Research Group, a non-governmental organisation she set up in 1982 to develop effective dialogue between nuclear weapons policy-makers worldwide and their critics, for which she was nominated three times for the Nobel Peace Prize. She served as its executive director from 1982 until 2003, when she left that role to set up Peace Direct, a charity supporting local peace-builders in conflict areas. In 2003 she was awarded the Niwano Peace Prize.