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 Gaul1998
The Cambridge Illustrated History of the Roman World2003
Ancient Civilizations: The Illustrated Guide to Belief, Mythology and Art2005
Et tu Brute?: The murder of Caesar and political assassination2006
Tales of the Barbarians: Ethnography and Empire in the Roman West2010
Rome: An Empire’s Story2012
Ancient Libraries2013
The Life and Death of Ancient Cities: A Natural History2019