Andrew Frederic Wallace-Hadrill, OBE, FBA, FSA (born 29 July 1951) is a British ancient historian, classical archaeologist, and academic.
He was Director of the British School at Rome between 1995 and 2009, and Master of Sidney Sussex College, Cambridge from August 2009 to July 2013.
He was elected the 25th Master of Sidney Sussex College at the University of Cambridge, taking up office in August 2009 on the expiry by statute of Professor Dame Sandra Dawson's tenure.
In 2004, in an interview on the Australian television programme 60 Minutes, Wallace-Hadrill aired his opinion about the neglect of the archaeological site of Pompeii.
He was described as an "angry archaeologist" when he argued that the conservation issues that need to be acted upon urgently at Pompeii are being neglected and that the site is suffering from a "second death".