Knowing or experienced; iron
Ernan is an Anglicized form of the Irish name Earnán. It is derived from the Gaelic word 'iarn' meaning iron, implying strength, or 'earna' meaning knowing or experienced. It was the name of several early Irish saints, including a nephew of Saint Columba.
Fewer than 5 boys were named Ernan in 2025.
US births per 5-year period, 1990–present (SSA data).
7th-century Irish saint and nephew of St. Columba
Influential Irish philosopher of science and priest