Gregory Duncan Woolf, FSA, FSA Scot, FBA (born 3 December 1961) is a British ancient historian, archaeologist, and academic. He specializes in the late Iron Age and the Roman Empire. Since January 2015, he has been the Director of the Institute of Classical Studies, and Professor of Classics at the University of London. He has previously taught at the University of Leicester and the University of Oxford. From 1998 to 2014, he was Professor of Ancient History at the University of St Andrews.
Books in order of publication:
| Becoming Roman: The Origins of Provincial Civilization in Gaul | 1998 |
| The Cambridge Illustrated History of the Roman World | 2003 |
| Ancient Civilizations: The Illustrated Guide to Belief, Mythology and Art | 2005 |
| Et tu Brute?: The murder of Caesar and political assassination | 2006 |
| Tales of the Barbarians: Ethnography and Empire in the Roman West | 2010 |
| Rome: An Empire’s Story | 2012 |
| Ancient Libraries | 2013 |
| The Life and Death of Ancient Cities: A Natural History | 2019 |
