Alexander Macdonell may refer to: Alexander Macdonell of Greenfield (1782–1835), politician in Upper Canada Alexander Macdonell (bishop of Kingston) (1762–1840), 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) (1762–1842), elected representative for Glengarry County, Ontario and soldier in the War of 1812 Alexander Ranaldson MacDonell (1773–1828), Scottish clansman Alexander McDonell (politician) (1786–1861), politician for Northumberland County, Ontario
See also Alexander McDonnell (disambiguation) Alexander MacDonnell (disambiguation)