Alexander McKay
Alexander McKay or MacKay may refer to:
- Alexander McKay (boxer), Scottish heavyweight bare-knuckle fighter
- Alexander McKay (politician), mayor of Hamilton, Ontario, 1886-1887
- Alexander Mackay (British Army officer), British general and Member of Parliament
- Alexander MacKay (politician), merchant and politician in Nova Scotia, Canada
- Alexander Gordon McKay, Canadian academic who specialized in Vergilian studies
- Alexander Murdoch Mackay, Presbyterian missionary to Uganda
- Alexander MacKay (fur trader), business associate of fur trader Duncan Cameron
- Alexander Grant MacKay, Canadian teacher, lawyer and provincial level politician
- Alexander Mackay (magistrate), New Zealand farmer, explorer, linguist, magistrate and land court judge
- Alexander McLellan Mackay, businessman and politician in Newfoundland
- Alexander McKay (geologist), New Zealand geologist
- Alexander McKay (educator), educator in Nova Scotia
- Alex MacKay (umpire), American baseball umpire