Blaikie is a Scottish surname.
Etymology
Blaikie derives from "blaik" (adj.), a word in the Scots language meaning black, plus the common Scots diminutive suffix "-ie".
The Dictionar o the Scots Leid ("Dictionary of the Scots Language") says the etymology of "blaik" is: "Blaik, a. [e.m.E. and ME. blake, ME. blaak(e, OE. blace, blaca, etc., declensional forms of blæc Blak a.] Black.".
Old records in Scotland
Into the 20th century the Blaikie surname name has been recorded in inextricably confused forms in Scottish parish, census and statutory records, often interchangeably with the spellings "Blackie", "Blakie", "Blaickie", "Blaikkie", "Bleakie", "Blekie", "Bleckie" etc. Nowadays, the spelling of surnames is more permanent and the various spellings are independent.
The oldest surviving and digitally available old parish Kirk birth register (Church of Scotland) entry for the "Blaikie" spelling of the name is dated 29 October 1598 in the parish of Prestonpans (near Edinburgh, Scotland) for Johnne Blaikie, son of Johnne Blaikie and Cristiane Finlaysoun.
The oldest surviving and digitally available old parish Kirk registers deaths and burials (Church of Scotland) entry for the "Blaikie" spelling of the name is recorded in the Canongate Parish of Edinburgh, Scotland for John Blaikie dated March 1658.
The oldest surviving and digitally available old parish Kirk Banns and marriage register (Church of Scotland) entries for the "Blaikie" spelling of the name are dated 7th February 1604 for Umphray Young and Janet Blaikie in Edinburgh, Scotland; 14th February 1604 for Hew Myller and Jeane Blaikie in South Leith Parish, Leith, Scotland; and two entries from the Parish of Pencaitland, East Lothian for Patrik Blaikie and Nanes Dobie on 1st January 1605 and Andro Mairteine and Cristiane Blaikie on 5th July 1606.