| William Bell | |
| Birth Date: | 28 May 1780 |
| Birth Place: | Scotland, United Kingdom |
| Occupation: | Minister, writer |
| Children: | William Bell Robert Bell |
William Bell (May 28, 1780 August 16, 1857) was a Presbyterian minister, born in Scotland and an immigrant to Upper Canada.
Bell and his family settled in Perth, Upper Canada, in 1817. He was a significant figure in promoting and expandingthe Presbyterian faith among the settlers in his region. He assisted in starting congregations in Beckwith Township, Lanark, Smiths Falls and Richmond.
His carefully constructed diaries and other writings provide an important insight into the interactions between the United Synod of Upper Canada (aligned with the Scottish United Secession Church) and the Synod of the Presbyterian Church of Canada (aligned with the Church of Scotland). In 1835 Bell left the former and joined the latter. The former was absorbed by the latter by 1839. In 1844 a large group withdrew from the latter, and formed a Free Church of Scotland Canadian Synod. However, Bell remained within the Presbyterian Church of Canada in Connection with the Established Church of Scotland.
His son William Bell was a businessman and militia officer who gained some notability in Canadian history. Another son, Robert Bell, was a notable politician in Lanark County.