Jonquil Fiona Williams, OBE, FBA, FAcSS (born 22 July 1947) is a British retired academic of social policy whose research covers gender, race, ethnicity, and the welfare state. From 1996 to 2012, she was Professor of Social Policy at the University of Leeds. She was previously a lecturer at the Polytechnic of North London, Plymouth Polytechnic, and the Open University, before becoming Professor of Applied Social Studies at the University of Bradford.