Hargan Surname Meaning & Coat of Arms

Hargan is best understood together with Horgan: both are Irish spellings of one family name. In origin, the name means “Descendant of Arragán”. Spelled with “a” instead of “o”, Hargan shows how the same name was heard and written differently. Spellings drifted because names were written down by ear in parish books, tax rolls and passenger lists.

You may also find the name written Horrigan and O'Horgan.

Arms linked to Horgan and its spellings were granted to individual families; our heraldry team traces which line they belonged to. For the full story, order the Hargan surname pack.