John Rochester (May 22, 1822 – September 19, 1894) was a Canadian industrialist, mayor of Ottawa, Ontario from 1870 to 1871, and a member of the House of Commons of Canada representing Carleton from 1872 to 1882. Other early Ottawa Valley names, besides marriages listed above, connected to the Rochester family include: Cole, McDougal, Church, McLaren, and Bryson, to name but a few.