Edith Gillian Clark FBA is a British historian, who is Professor Emerita of Ancient History at the University of Bristol.

Clark studied Greek and Latin language and literature, ancient history, and philosophy at Somerville College, Oxford.

[3] Clark is currently working on a commentary of Augustine of Hippo's City of God, under contract with Oxford University Press.

She is a Fellow of the British Academy and an editor for the Translated Texts for Historians 300–800 series, published by Liverpool University Press.

An event, "Christianity and Roman Society: A Colloquium for Professor Gillian Clark", was held in her honour in 2011 at the University of Bristol and a Festschrift was published in 2014 as a result.