Frans L Leeuw (sociologist)  was born in 1953.
He is a Professor, Law, Public Policy and Social Science Research, University of Maastricht.
He was President of the European Evaluation Society (1999-2002) and of the Netherlands Evaluation Society. 

Earlier positions:
• Director, WODC, Ministery of Justice and Security, Den Haag;

Professor, Evaluation studies, Utrecht University, the Netherlands (1992-2006);
• Chief-Inspector, Inspectorate for Education, the Netherlands (2000-2003);
• Dean, Humanities & social sciences Faculty, Netherlands Open University (1995-2000);
• Director, Performance Auditing and Evaluation, Netherlands National Audit Office (1987-1995);
• Associate Professor, Policy Research, Leiden University (1978-1987);
• Fulbright Scholar, University of North Carolina at Chapel Hill (1980);
• Research associate, Dpt of Sociology, Utrecht University (1975-1978).