Scottish Thompson Name is MacTavish


Is MacTavish!

MacTavish  TRIO plaque

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MacTavish, or the abbreviated McTavish, are only two variations of the name, and are shortened

and modernized spellings of an ancient Irish Gaeilge (Irish Gaelic) name.

In Old (ancient) Irish the name of the language is Goídelc .

MacTamhais > MacTavish > Thom(p)son
Gaelic > Anglicized > Englished
The surname MacTamhais is the Gaelic form of the more modern spelling of MacTavish.
MacTamhais is pronounced (heard by the ear) as “Mac Tavis” in the Gaelic of Knapdale.

MacTamhais is merely one “era’s spelling” of the name.

The old Irish name, shown above translates in English to “Son(s) of the Devotee of Saint Thomas (the Apostle), which carries with it links to the ancient Celtic Church of Ireland and Scotland.


  • Surnames of Scotland, Professor George F. Black, New York Public Library
  • Scottish Surnames, Donald Whyte, Scottish Genealogy Society
  • Clans, Septs, and Regiments of the Scottish Highlands, Frank Adam, Sir Thomas Innes of Learney


  • Scottish Names 101 – Name Transformation or “Translation”, Sharon L. Krossa
  • Thompson One Name Study, by Michael Thompson
  • Weekly Scotsman (Newspaper), 1962
  • An Inquiry into the Genealogy & Present State of Ancient Scottish Surnames with the Origin and Descent of the Highland Clans, by William Buchanan
  • The Manuscript History of Craignish, by Alexander Campbell edited by Herbert Campbell

MacTAVISH. G. Mac Tamhais. (G. = Gaelic Anglicized: MacTamhais (MacTavish) = Thom(p)son in Englsih

MacTavish is an Anglicized spelling of the Gaelic MacTamhais, while Thom(p)son is the the modern Anglicized alias of MacTavish.

The name of Clan MacTavish in Scottish Highland Gaelic is Clann MacTamhais.

Clannad (alternately Clanna) is the plural of Clann. Clannad na Alba means, Clans of Scotland.

Bear in mind that not every Thomson or Thompson in the world is a MacTavish, as the name Tammas, Tamhus, Thome, Tome, Tom or Thomas was a very common name form from which surnames are derived. There was virtually a Thomas in every glen of Scotland, so that not all Thomsons and Thompson are related. Clan MacTavish claims those Thomsons or Thompsons who are originally descended from the Dalriadic Argyll MacTavishes, or those who took the name as their won, as they spread out to various regions of Scotland, and have changed their surname to a more gentrified, Latinized or Anglicized version.

In the Highlands, however, the patronymic form of the ancestor or chief was used by the individual to describe himself, even before surnames were a standard form of identification elswhere. Hence in Clan MacTavish, the use of the literal Mac Tavis or the Gaelic Mac Tamhais, signified who a person was, and from which clan he originated. The person used his Chief’s identifier to proclaim who he was, as he had no surname before the 15th to 16th century. The Gaelic surname transition into Englished or Latinized surnames was taking place in the Scottish Highlands well into the 19th century [modern times], accounting for multiple spelling variations. One variation is MacTawes which is a phonetic of MacTaus (the genitive form). From glen to glen a name could and did change from a Gaelic form to an altered form. This has been seen in records for multiple Gaelic names, where the wild and wholly Mac has been completely omitted. Thus MacTawes is simplified or abbreviated as Tawes, Tawis or Tawse, all with their orign in the Gaelic form of Thomas, which is MacTavis.

Scottish Gaelic Pronunciation of MacTamhais as used in the Kintyre dialect = Mac Tavis (soft ‘a’ 2nd syllable). The Knapdale dialect which is slightly different pronounced the name as Mac Tovis (soft ‘o’ 2nd syllable).  The name was commonly spelled MacTamhais or MacTomhais, alternately spelled MacThamais or MacThomais, in a given era. Consider the Gaelic alphabet is not the English alphabet, and name aliases (such as MacTavish to Thompson) can only be derived from the root source which is originally Aramaic, the word for a twin being te’oma  תאומא (ENGLISHED as Thomas).

pronounced as
pronounced as
pronounced as
a” as in ‘what’
(soft a)
pronounced as
v” as in very
pronounced as
a” silent
pronounced as
is” as in ‘list’

THOMPSON, ‘son of Thom,’ q.v., with intrusive p. This spelling is more commonly found in England.

THOMSON, ‘son of Thom,’ q.v. A fairly numerous surname in Scotland.

John Thomson “a man of low birth, but approved valour,” was leader of the men of Carrick in Edward Bruce’s war in Ireland in 1318 (Hailes, II, p.102, 206). Adam Thomson appears as lord of Kylnekylle, Ayrshire, c. 1370-80 (Laing, 64). Johannes filius Thome was elected bailie of Aberdeen in 1398 (CRA, p. 374), and John Tomson witnessed a grant in Ayr in 1401 (Friars Ayr, p. 37). Donald Thomson was one of an inquest to determine the rights of pasturage which the Temple lands had over the adjoining town and territory of Letter in 1461 (Strathendrick, p. 223). John Thomsoun was juror on an inquest at Dunipace in 1426 (Cambus, 87), Duncan Thomsone of Auchinhampteris witnessed a bond of manrent in 1491 (SMC, IV, p. 189). Cuthbert Thomasoun witnessed a notarial instrument of 1517 (SoltreI, p. 89), James Tomsone was tenant of the bishop of Glasgow in 1511 (Rental), and Peter Thomsone was Illay Herald in 1561 (ER, XIX, p. 150).

“The most conspicuous family of the name were the Thomsons who possessed Duddingston, near Edinburgh, for five generations till sold by Sir Patrick about 1668; his father had been created a baronet in 1636” (Stodart, II p. 140).


Many individuals of this name in Perthshire and Argyllshire are really MacTavishes. 

The surname in these districts is an Anglicized form of Gaelic MacThomais, ‘son of Thomas,’ or of Mac Thomaidh, ‘son of Tommie.” The name is usually spelled MaKcome (3 syllables) in the early records, and was formerly common in Upper Deeside. Alexander Thomeson appears in Strathdee in 1527 (Grant, III, p. 70). John Dow Thomasson in Perthshire fined for resetting Clan Gregor, 1613 (RPC, XIV, p. 632). Tamson 1654, Thomeson 1504, Thomesoune 1477, Thompesoune 1665, Thomsoune 1535, Tomsoun 1567. In some instances it is also an Englishing of MacComie, q.v. See also Thomason.

Surnames of Scotland by George F. Black, Pgs 768 & 769

Many of the Argyllshire MacTavishes now make Thomsons of themselves, while others are known as Tawesons. The surnames, MacLehose, and MacLaws, are regarded as corrupted forms of Mac-Gille-Thomais – son of the gille or servant Thomas. There was a strong colony of MacTavishes in Strathglass at an early period. But these repudiate dependency on Clan Campbell, and MacTavish of Dunardry is chief of that clan, whilst Thomson of that Ilk on the Border is regarded as a remotely connected or indeterminate connection to the MacTavishes.

Clans, Septs, and Regiments of the Scottish Highlands, Frank Adam, Sir Thomas Innes of Learney (Lord Lyon) p 301

. . . the eldest, Taus Corr *, or Thomas the singular, he was ancestor of the MacTauses, or Thomsons of Argyllshire, and some other parts.

An Inquiry into the Genealogy & Present State of Ancient Scottish Surnames with the Origin and Descent of the Highland Clans
by William Buchanan of Auchmar, p 33

* Taus/Taviss Corr is considered the progenitor of Clan MacTavish in Scotland, while his ancestry is Irish. (In Gaelic Taus is the genitive form of Tavis/Taviss.)

“. . . famous in ther day for mighty warriours, viz. Taviss Corr and Iver Crom of whom descended 2 numerous Clanns the McTavishes or Thomsons and the McIvers.”

       The Craignish Manuscript, by Alexander Campbell, Advocate, when consolidating the ancient Q-Gaelic hand-written records of

John Campbell, Duke of Argyll.

           It was later published as The Manuscript History of Craignish, by Herbert Campbell. The text is taken from Herbert Campbell’s  p 256.

Note that the Clan MacThomas1, whose chief is MacThomas of Finegand, is not related to the MacTavishes, whose chief is MacTavish of Dunardry, in a familial sense, but clearly both MacTavish and MacThomas derive from two varied Gaelic forms of the name Thomas. MacThomas of Finegand does not claim the spelling of Thompson. Both MacTavish and MacThomas are Celtic Highland clans. Many of the Thomsons of Lowland and Border regions are originally from Teutonic roots, and not related to the MacTavishes or MacThomases. Yet there are families of MacTavish and MacThomas who migrated to the Lowlands and Borders at different times and now use the English spelling (alias) of Thomson or Thompson, but these are genetically either MacTavish or MacThomas. Many of these former MacTavish and MacThomas (by name families) are also found outside of Scotland having migrated to England, Wales, North America, New Zealand, Australia, and elsewhere. There were MacTavish ancestors abiding in Dumfriesshire (old Cumbria) as early as the 6th century, and nearly all of them adopted the English spelling. This has been established via Y-DNA testing, showing a Dalriadic (Irish 6th century or earlier) root. The MacTavishes have an ancient Irish origin and name, while many Lowland and Border Thomsons origin is of Teutonic roots, and their name cannot be established prior to the 14th-15th century. The original MacTavish root name (English transliteration of which is MacGiollatGamhais or MacGiollatSamhais) appears in Ireland as early as the 13th century.

1 Thomas, a Gaelic speaking Highlander, known as Tomaidh Mor (‘Great Tommy’), from whom the clan takes its name, was a descendant of the Clan Chattan Mackintoshes, his grandfather having been a son of William, 8th Chief of Clan Chattan.

Thomas lived in the 15th century, at a time when the Clan Chattan Confederation had become large and unmanageable and so he took his kinsmen and followers across the Grampians, from Badenoch to Glenshee where they settled and flourished, being known as McComie (phonetic form of the Gaelic MacThomaidh), McColm and McComas (from MacThom and MacThomas).

Note: Some descendants of the MacThomases and MacTavishes may have intermarried, but otherwise do not appear to be closely related.