Irish Name Generator
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Create a character profileIrish names feature Gaelic spelling that can surprise non-Irish readers: Siobhán (shuh-VAWN), Caoimhe (KEE-va), Saoirse (SEER-sha). The Mac (son of) and Ó (grandson of) prefixes create the familiar Irish surname patterns, while given names draw from mythology and early Irish literature.
About irish names
The gap between Irish Gaelic spelling and English pronunciation is the defining challenge of Irish names in fiction. Caoimhe (KEE-va), Saoirse (SEER-sha), Siobhán (shuh-VAWN), and Niamh (NEEV) follow Gaelic orthographic rules that are perfectly logical within Irish but opaque to English readers. Writers must decide whether to use authentic spellings or Anglicized approximations.
Irish surnames use two patronymic prefixes: Mac (son of) and Ó (grandson/descendant of). O'Brien, O'Connor, and O'Sullivan use the Ó prefix, while McCarthy, McGuire, and MacDonald use Mac. The prefix indicates how many generations back the named ancestor lived.
Given names from Irish mythology (Oisín, Fionn, Niamh, Deirdre, Cú Chulainn) remain in active use and connect modern Irish identity to pre-Christian Celtic heritage. These names carry mythological associations that Irish readers will recognize immediately.
Naming tips
Include pronunciation guides
If using authentic Irish spellings, provide pronunciation on first appearance. "Aoife (EE-fa)" saves the reader from guessing and prevents the name from becoming an obstacle to immersion.
Use Mac and Ó correctly
Mac means "son of" and Ó means "grandson of." Historically, Ó indicates a more distant ancestor. Don't mix them randomly. Also note that the feminine forms are Nic (daughter of) and Ní (granddaughter of), though these are less commonly seen in English-language fiction.
Draw from mythology for weight
Names like Fionn, Oisín, Niamh, and Deirdre carry the weight of Ireland's mythological cycle. Using them signals a connection to deep Irish identity that more modern names do not.