John Gunion Rutherford (December 25, 1857 – July 24, 1923) was a Canadian veterinarian, civil servant, and politician.Born in Mountain Cross, Newlands Parish, Peeblesshire, Scotland, the son of Rev. Robert Rutherford, Rutherford was educated at the HighSchool in Glasgow and by private tuition. He emigrated to Canada in 1875 and took a course at the Ontario Agricultural College and afterwards attended the Ontario Veterinary College, graduating in 1879 with the rank of Gold Medalist.