William Johnston (Ontario politician)
William J. Johnston  | |
|---|---|
| Member of the Ontario Provincial Parliament for Lanark South  | |
| In office October 20, 1919 – May 10, 1923  | |
| Preceded by | Francis William Hall | 
| Succeeded by | Egerton Reuben Stedman | 
| Personal details | |
| Political party | United Farmers | 
William J. Johnston was a Canadian politician from Ontario. He represented Lanark South in the Legislative Assembly of Ontario from 1919 to 1923.