David O’Keefe is a best-selling author, a television writer and presenter, and an award-winning historian. He is currently a professor of history at Marianopolis College in Westmount, Quebec.

Mr. O’Keefe served as an infantry officer in The Black Watch (Royal Highland Regiment) of Canada in Montreal. He also worked as a Signals Intelligence specialist for the Department of National Defence. He produced more than 20 documentaries for History Television (Canada), the History Channel (U.S.), and other broadcasters around the world. His groundbreaking documentary Dieppe Uncovered changed the established understanding of the Dieppe Raid. A Critical History of History in Moving Pictures named Dieppe Uncovered one of the best historical films of all time, outranking Steven Spielberg’s legendary miniseries Band of Brothers.  Additionally, Mr. O’Keefe is the author of the bestselling One Day in August: The Untold Story Behind Canada’s Tragedy at Dieppe (2014). In 2020, he published Seven Days in Hell: Canada’s Battle for Normandy and the Rise of the Black Watch Snipers.

The Canadian Government has acknowledged Mr. O’Keefe twice for his dedication to historical research and his efforts on behalf of Canadian veterans. He is a recipient of the Queen’s Diamond Jubilee Medal and a Ministerial Commendation from the Minister of Veterans Affairs. He lives in Rigaud, on the border of Quebec.