McGeachie is a very old Scottish name that may even date back to the Dalriadan tribe of Scotland's western coast and Hebrides islands. It comes from the personal names Eachan and Eochaidh. The McGeachie surename is of Irish origin, known in Gaelic as Mag Eachaidh, or, in the Ulster variant, Mag Eochadha. Variations of the names spelling include MacGeachy and MacKeachie.
