Constantine George "Gus" Mitges, B.V.Sc., D.V.M., V.S. (5 February 1919 – 1 November 2009) was a Greek-Canadian member of the House of Commons of Canada from 1972 to 1993. By career, he was a veterinarian. Mitges was born in , Greece. He came to Canada at the age of six and grew up in Guelph. A veterinarian by profession, he entered politics when he served as a school board member. In 1966, he was elected as an alderman in Owen Sound, where he served until his election to the House of Commons. On 1 November 2009, Mitges died at Guelph General Hospital, aged 90.