This surname may be extinct

McIsiac Surname Definition:

MACISAAC: Gaelic Mac Isaac or Mac Iosaig, 'son of Isaac,' which see. Gillanders Macysac witnessed a Beauly charter of 1231 (Beauly, p. 33). John mac ysaac who witnessed a charter by Donald, earl of Lennox in or before 1364 (HP., IV, p. 16) may be John Makysaac who witnessed a charter by Duncan, earl of Lennox, 1395 (Levenax, p.

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McIsiac Surname Distribution Map

By incidenceBy frequencyBy rank
PlaceIncidenceFrequencyRank in Area
England51:4,875,074116,529

McIsiac Surname Meaning

From Where Does The Surname Originate? meaning and history

MACISAAC: Gaelic Mac Isaac or Mac Iosaig, 'son of Isaac,' which see. Gillanders Macysac witnessed a Beauly charter of 1231 (Beauly, p. 33). John mac ysaac who witnessed a charter by Donald, earl of Lennox in or before 1364 (HP., IV, p. 16) may be John Makysaac who witnessed a charter by Duncan, earl of Lennox, 1395 (Levenax, p. 79). Esaig M'Thome V'Esaig witnessed sasine of lands of Craginche to Archibald, earl of Argyll, 1510 (OPS., II, p. 97). Murdoch Mclsack to be transported to New England, 1685 (RPC., 3. ser. XI, p. 94). Ann Maciosaig in Ceann-langavat, South Uist, was one of the late Dr. Carmichael's reciters (Carm. Gadel., II, p. 374). In Nfackay's Book of Mackay (p, 5n) the wild suggestion is made that Macisaac "may be a corrupt form of Mackay." Mc Isaick 1745, M'lsak 1676, Makesaig 1592, M'lseik and M'Kiseck 1731.

— The Surnames of Scotland (1946) by George Fraser Black (1866-1948)
DNA test information

Phonetically Similar Names

Incidence (high to low)Incidence (low to high)Alphabetic A-ZAlphabetic Z-ASimilarity (high to low)Similarity (low to high)Prevalent jurisdiction A-ZPrevalent jurisdiction Z-A
SurnameSimilarityWorldwide IncidencePrevalency
McIssiac930/
McIsac920/
McIsaac862,589/
McIssac8657/
McIsack8619/
McIsacc864/
McIsasc862/
McIsach860/
McIsaacs8026/
McIssaac805/
McIssack802/
Mcissacs802/
McSisaac801/
McIsaack800/
McKissiak750/
Mxisaac711/
McIsaak710/
McCissock630/
Mjesias571/
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Footnotes

  • Surnames are taken as the first part of an person's inherited family name, caste, clan name or in some cases patronymic
  • Descriptions may contain details on the name's etymology, origin, ethnicity and history. They are largely reproduced from 3rd party sources; diligence is advised on accepting their validity - more information
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  • Heatmap: Dark red means there is a higher occurrence of the name, transitioning to light yellow signifies a progressively lower occurrence. Clicking on selected countries will show mapping at a regional level
  • Rank: Name are ranked by incidence using the ordinal ranking method; the name that occurs the most is assigned a rank of 1; name that occur less frequently receive an incremented rank; if two or more name occur the same number of times they are assigned the same rank and successive rank is incremented by the total preceeding names
  • Ethnic group cannot necessarily be determined by geographic occurrence
  • Similar: Names listed in the "Similar" section are phonetically similar and may not have any relation to McIsiac
  • To find out more about this surname's family history, lookup records on Family​Search, My​Heritage, FindMyPast and Ancestry. Further information may be obtained by DNA analysis