Son of Finlay; fair-haired warrior
A modern variant of the Scottish surname McKinley, derived from the Gaelic Mac Fhionnlaigh. It traditionally translates to 'son of the fair-haired hero' or 'son of Finlay.' While historically a masculine surname, it has transitioned into a contemporary unisex given name in the United States.
Fewer than 5 girls were named Mckenly in 2025.
US births per 5-year period, 1990–present (SSA data).
