A spelling variant of Blair, from a Scottish surname and place-name meaning plain or field.
Blayr is a phonetically inventive respelling of Blair, a name with deep roots in Scottish Gaelic culture. The Gaelic "blàr" means a flat open expanse — a plain, a field, or more dramatically, a battlefield. It entered the Scottish naming tradition as a topographic surname, given to families who lived near such terrain, before making the characteristic journey from place-name to family name to given name that so many Scottish names have traveled.
In Scotland, Blair remains a place-name attached to several towns and estates, keeping the word's landscape character alive. As a given name, Blair was historically masculine — carried by figures like John Blair, the 18th-century Scottish clergyman who served as chaplain to George Washington — but it crossed gender lines in the latter 20th century and is now used freely across the spectrum. American audiences associate it with Blair Waldorf, the sharp-tongued socialite of the television series Gossip Girl, a character who gave the name a patina of Manhattan ambition and acidic wit.
Before that, it was marked by Linda Blair's unforgettable performance in The Exorcist (1973), a very different cultural stamp. Blayr, with its "-yr" ending, belongs to a contemporary American naming aesthetic that prefers to individualize familiar names through respelling — Klair for Claire, Jasmyn for Jasmine, and so on. The y-ending softens the visual impression of the name while maintaining its sound, giving it a slightly more feminine or at least androgynously stylized quality on the page. It signals a family that wanted the Scottish backbone of Blair with a contemporary twist that is entirely their own.