From Irish Gaelic 'Aodhagán' meaning 'little fire,' a diminutive of Aodh.
Egan springs from the ancient Gaelic name Aodhagán, a diminutive of Aodh — the old Irish god of fire and sun, whose name is cognate with the Latin 'aestus' (heat) and lives on in the anglicized Hugh. The 'agán' suffix is an affectionate diminutive, so Egan literally means 'little fire,' a name charged with warmth and spirit from its earliest use. It was widespread in medieval Ireland, and the O'Egan sept of County Tipperary carried it forward as a proud surname for centuries before it circled back into use as a given name.
As a surname it produced notable bearers, including the 19th-century Irish nationalist John Egan, who served as Mayor of Dublin, and the American writer and journalist Timothy Egan, whose Pulitzer-winning journalism brought Pacific Northwest stories to national attention. The name never fully shed its Irish identity, which has given it an appealing specificity — it announces heritage without being obscure to English ears. In the modern era, Egan has attracted parents who want something genuinely old but that lands cleanly on contemporary playgrounds.
It sits comfortably alongside Finn, Declan, and Cormac in the Irish-revival wave, yet its fire-god etymology gives it a mythic edge that feels fresh. Its two-syllable punch and hard consonant ending make it feel assured and grounded — a name that carries its own small flame.