Alexander Grant MacKay | |
|---|---|
 | |
| Member of the Legislative Assembly of Alberta | |
| In office 1913–1920 | |
| Preceded by | Jean Côté |
| Succeeded by | George Mills |
| Constituency | Athabasca |
| Ontario MPP | |
| In office 1902–1913 | |
| Preceded by | George Milward Boyd |
| Succeeded by | Colin Stewart Cameron |
| Constituency | Grey North |
| Personal details | |
| Born | March 7, 1860 Sydenham, Canada West |
| Died | April 25, 1920 (aged 60) Edmonton, Alberta |
| Political party | Liberal |
Alexander Grant MacKay (March 7, 1860 – April 25, 1920) was a Canadian teacher, lawyer and provincial level politician. He served prominent posts in two provincial legislatures as Leader of the Opposition in Ontario and as a Cabinet Minister in Alberta.