Dr Andrew T. Ross was a former operations research analyst with the Defence Science and Technology Organisation (DSTO) of the Australian Government Department of Defence. He is also a political scientist and military historian, and a Visiting Fellow at the University of New South Wales (UNSW), Canberra.

He was the author of many studies published by DSTO, and since that time (with Dr Robert Hall) has completed numerous other studies written under contract for DSTO and UNSW. Much of the latter involved Ross in building complex computerised databases for his analysis of insurgency warfare campaigns involving Australia.

Ross was the major contributor to the 2015 Cambridge University Press publication The search for tactical success in Vietnam: An analysis of Australian Task Force Combat Operations (other authors were Robert Hall and Amy Griffin).