Bothwell was a federal and provincial electoral district in the Canadian province of Ontario, which was represented in the House of Commons of Canada from 1867 to 1904 and in the Legislative Assembly of Ontario from 1867 to 1875. It is sometimes also considered one of Ontario's historic counties, as it was listed in some post-Confederation census records as a county of residence.
At its creation in 1867, Bothwell consisted of the Kent County townships of Bothwell, Camden, Dresden, Howard, Orford, Ridgetown, Thamesville and Zone, and the Lambton County townships of Dawn, Euphemia and Sombra. In 1882, the Townships of Euphemia, Orford and Howard were excluded from the riding, and the township of Chatham, the villages of Wallaceburg, Dresden and Thamesville, and the town of Bothwell were added to the riding.
The electoral district was abolished in 1903 when it was redistributed between Kent East, Kent West, Simcoe East and Simcoe South ridings.
The provincial district was divided between Kent West and Kent East in 1875.
This riding elected the following members of the House of Commons of Canada:
The riding elected the following member to the Legislative Assembly of Ontario:
Mr. David Mills was appointed Minister of the Interior and Superintendent General of Indian Affairs, 24 October 1876:
Election declared void Mr. J.J. Hawkins was declared not duly elected and was unseated by judgement of Supreme Court. The seat was awarded to his opponent, 25 February 1884: