Sir Edward Mackay Edgar, 1st Baronet (27 February 1876 – 7 October 1934) was a Canadian-British banker. Mackay Edgar was born in Montreal and educated at McGill University. He became a member of the Montreal Stock Exchange. In 1907 he went to Britain on business and stayed, joining Sperling & Co Ltd, merchant bankers, of Moorgate Street, London, in 1908 and later becoming a senior partner. In 1917, he became chairman of British Controlled Oilfields Ltd, remaining in the post until 1925. He was created a baronet in the 1920 New Year Honours, largely due to his services to British-Canadian trade.