Glass is two unrelated surnames sharing one spelling: a Gaelic color word meaning grey, and an English trade name for a man who worked with glass. Scotland has both, and the records rarely tell you which one you have.
What Does Glass Mean in Gaelic?
Grey, roughly. Gaelic glas covers a band of color English splits into several: grey, and the green-blue of unripe grass or seawater. The Oxford-backed Dictionary of American Family Names files the Scottish and Irish surname as an anglicized form of that epithet, "slate colored, gray".
It began as a description, not a family name. A man was Donald Glas the way another was Donald Bàn, to tell him from the other Donalds in the township, and the nickname stuck to his children. Scotland made surnames of a whole set of color words this way, giving us Black from dubh, Bain from bàn, and Gray in Scots.
Is Glass a Sept of Clan Gunn or Clan Mackintosh?
Not as usually stated. Glass appears on neither the published sept list for Clan Gunn nor the one for Clan Mackintosh, and it is absent from Electric Scotland's compilation of sept names.
Something real sits behind the confusion. Mackintosh does count MacGlashan among its septs, and MacGlashan is Mac Ghlais, son of the grey man, on the same root; a clerk could easily shorten it to Glass. That is a plausible route into Clan Chattan, but a route is not a listing.
Is There a Place in Scotland Called Glass?
Yes, which opens a third possibility. Glass is a parish about eight miles west of Huntly in Aberdeenshire, reaching into Banffshire before the 1891 boundary changes, and its own derivation is unsettled: Gaelic words for grey, meadow and stream have all been argued. A family named from it would be a territorial Glass, no nickname involved. This is Gordon country, and a north-east Glass line is worth testing against it.
Did Glass Also Mean Glazier?
In England, plainly. The occupational strand runs from Old English glæs: Thomas le Glasyer in Cornwall in 1297, Robert le Glasiere in Essex in 1327, Ricardus Glase marrying at Pontesbury in Shropshire in 1540. It concentrates in the West Midlands, and the dictionaries treat it as metonymic, a man named for the material he handled. It reached Scotland with English incomers and merged with the Gaelic strand so completely that spelling will not separate them. A Glass in Shropshire is almost certainly a glazier's descendant; a Glass in Sutherland is almost certainly not.
Why Are So Many Glasses Found in Ulster?
Because most of them came from Scotland. The 1901 Scottish census counted 1,506 Glasses, ranking the name 518th; Ireland's counted 677, ranked 1,066th. The religious breakdown is the giveaway: roughly 41 percent Anglican and 41 percent Presbyterian against about 12 percent Catholic. A name four-fifths Protestant in Ireland in 1901 is a settler name, and the Presbyterian share points at Scots rather than English planters.
Our guides to the Plantation surnames and the Ulster route to Appalachia follow that traffic onward, which is how most American Glasses arrived.
Who Was John Glas?
The best-documented bearer in Scotland, and a spelling warning in himself. Born at Auchtermuchty in Fife on 5 October 1695 and ordained to Tealing in 1719, he decided a state-backed national church had no warrant in scripture, gathered about a hundred followers into a separate society in 1725, and was deposed in 1730 for it. His followers became the Glasites, and his son-in-law Robert Sandeman carried the movement to England and America. Glas died on 2 November 1773 and lies in the Howff in Dundee.
Note the single s. Glas and Glass interchange freely in Scottish records, and searching only the doubled form will cost you generations.
How Do You Trace a Glass Family?
- Fix the region before the etymology. The far north and north-east point to the Gaelic byname or the Aberdeenshire parish; Ulster to a Scottish settler line; the English Midlands to the glazier.
- Search Glas, Glass, Glasse and Glace together, and run MacGlashan separately before merging anything.
- Take an Ulster line back across the North Channel rather than forward. Most Irish Glass families are Scots who moved.
- Come down from a post-1855 certificate, explained in our piece on statutory registration, then into the Old Parish Registers, weighing what a Scottish surname can and cannot prove before committing to one origin.
Own a Piece of Glass Heritage
A name taken from the color of slate, seawater and winter grass has an unfussy honesty about it, and belonged to working people long before any pedigree. Three Glass items carry the crest over a tartan ground: a woven blanket, a mug and an engraved charcuterie board. No chief and no sett are recorded to Glass, so that cloth is chosen for looks, not inherited, and our guide to tartan and who may wear it gives the genuine conventions.
Frequently Asked Questions About the Glass Name
What does the surname Glass mean?
In its Gaelic form, grey, from glas, a word covering grey and the green-blue of grass and seawater. In its English form, a glazier.
Is Glass a sept of Clan Gunn?
Not according to the standard sept lists. The claim circulates on commercial charts but we could not find it supported.
Are Glas and Glass the same surname?
In Scottish records, yes. The two forms interchange within single families and should both be searched.
Is Glass an Irish surname?
Mostly it is a Scottish surname living in Ireland, over 80 percent Protestant in the 1901 Irish census.
Sources and Further Reading
- Glass in the Dictionary of American Family Names — the Gaelic epithet and the trade name together.
- Surname Database: Glass — le Glasyer 1297, le Glasiere 1327, Pontesbury 1540.
- Glass, Aberdeenshire — the parish west of Huntly and its disputed name.
- John Glas — Tealing, the 1730 deposition and the Glasites.
- Clan Gunn — the sept list, which does not include Glass.
- Clan Mackintosh — the sept list, carrying MacGlashan but not Glass.
- Electric Scotland: clan sept names — no Glass entry.
- Glass in the 1901 Scottish census — 1,506 bearers, ranked 518th.
- Glass in the Irish census — 677 in 1901 and the religious split.
- George F. Black, The Surnames of Scotland — early Glas forms.
- ScotlandsPeople — registers for both spellings.
Grey as slate, grey as the sea off Caithness, older than any chart that tries to file it: see the Glass name in our range, among over 2,000 surnames in the store search.