Richard John Philip Jermy Gwyn OC (May 26, 1934 – August 15, 2020) was a Canadian journalist, author, historian, and civil servant.

He was the second son to Brigadier Philip Eustace Congreve Jermy Gwyn, an Indian Army officer, and Elizabeth Edith Jermy Gwyn (née Tilley), eldest daughter of Sir John Anthony Cecil Tilley.

[1] Gwyn was educated at Stonyhurst College, a co-educational Jesuit-run Roman Catholic boarding school in Lancashire, England.

[3] The first volume of his Macdonald biography, The Man Who Made Us, won the Charles Taylor Prize for Literary Non-Fiction in 2008.

The second volume, Nation Maker: Sir John A. Macdonald: His Life, Our Times; Volume Two: 1867-1891, won the Shaughnessy Cohen Prize for Political Writing in 2012 and was a finalist for the Governor General's Award for English-language non-fiction and the Hilary Weston Writers' Trust Prize for Nonfiction.

Gwyn also appeared weekly as a panellist from 1994 to 2006 on TVO's Studio 2 and Diplomatic Immunity and was an occasional guest on The Agenda until 2017.