There are
336
Mcillwains in the USA
Mcillwain is the
60045th
most common last name in the USA

Mcillwain Genealogy

OriginsThe McIllwain surname originates from Scotland, specifically from Gaelic-speaking regions. Variations of the name can be found in Irish and Celtic traditions as well.
Geographic DistributionThe McIllwain surname is most popular in Scotland, where it has a significant presence. However, due to its relatively rare occurrence, it does not have widespread usage in other countries.
VariationsVariations of the McIllwain surname include MacGillivray, MacIlwain, and MacIlvain.
Migration and ImmigrationDue to its Scottish origins and limited presence, there is limited historical information available regarding the migration and immigration patterns of the McIllwain surname.