Son of the fair warrior
A modern creative spelling of McKinley. It derives from the Scottish Gaelic surname Mac Fhionnlaigh, which means 'son of Fionnlagh'. The name combines the elements 'fionn' meaning white or fair and 'laogh' meaning warrior.
Less common today
Mckynleigh isn't in the latest US Top 1000. It last peaked at #10,168 in 2021.
US births per 5-year period, 1990βpresent (SSA data).