| William Wallace | |
| Constituency Mp: | Norfolk South |
| Parliament: | Canadian |
| Predecessor: | Peter Lawson |
| Successor: | John Stuart |
| Term Start: | 1872 |
| Term End: | 1874 |
| Predecessor2: | John Stuart |
| Successor2: | Joseph Jackson |
| Term Start2: | 1874 |
| Term End2: | 1882 |
| Birth Date: | 4 February 1820 |
| Birth Place: | Galston, Ayshire, Scotland |
| Death Place: | Simcoe, Ontario |
| Party: | Conservative |
William Wallace (February 4, 1820 - August 28, 1887) was a Canadian journalist and political figure. He represented Norfolk South in the House of Commons of Canada from 1872 to 1882 as a Conservative member.
He was born near Galston, Ayrshire, Scotland, the son of John Wallace, and came to Canada around 1840. Wallace settled at Simcoe, Ontario and established a newspaper there, the British Canadian, as well as operating a printing business. He also opened a bookstore and occupied various posts associated with railways. Wallace served on the school board for Simcoe and also served as reeve, mayor and as a member of the council for Norfolk County. In 1852, he married Mary Ann Kent.
He did not run in the 1874 general election but won a by-election later that same year after the election was appealed. Wallace was defeated in 1882.