Little dark one or son of a lord
Derived from the Irish surname Mac Thighearnáin, meaning 'son of Tighearnán'. The root word 'tighearna' translates to 'lord' or 'master', while it is also frequently associated with the name Ciarán, meaning 'little dark one' or 'dark-haired'.
Less common today
Kiernan isn't in the latest US Top 1000. It last peaked at #1,688 in 2000.
US births per 5-year period, 1990–present (SSA data).
American actress known for 'Mad Men' and 'Chilling Adventures of Sabrina'
English professional footballer
