Alexander Macdonell
Alexander Macdonell may refer to:
- Alexander Macdonell of Greenfield, politician in Upper Canada
- Alexander Macdonell (bishop of Kingston), first Bishop of Kingston, Ontario
- Alexander Macdonell (bishop of Alexandria-Cornwall), bishop of the Roman Catholic Diocese of Alexandria-Cornwall, 1890–1905
- Alexander Macdonell (politician), elected representative for Glengarry County, Ontario and soldier in the War of 1812
- Alexander Ranaldson MacDonell, Scottish clansman
- Alexander McDonell (politician), politician for Northumberland County, Ontario