Son of the white warrior
Derived from the Scottish Gaelic surname Mac Fhionnlaigh, it signifies the son of Finlay. The name combines 'mac' (son) with 'fionn' (white or fair) and 'laoch' (warrior). While traditionally a surname, it has transitioned into a modern unisex given name.
Less common today
Mackinley isn't in the latest US Top 1000. It last peaked at #3,470 in 1999.
US births per 5-year period, 1990–present (SSA data).
