Gaelic form of John [q.v.], from Hebrew "God has been gracious", cognate with Ian/Iain:m].
- Note: In Scotland Eoin has a stress which has been variously recorded as Eòin or Eôin and tends to be Anglicized as Jonathan.
A correspondent [IS] notes that in Skye, Scotland, Gaelic-speakers use John and Ian/Iain/Eoin interchangeably. As well as being variants, in Gaelic areas with a reasonable influx of English speakers, the names should therefore be considered to be synonyms.