Broom-covered meadow or fire-cleared field
A modern American variant of the English surname Brantley. It likely derives from the Old English words 'brant', meaning steep, or 'brand', meaning fire/burnt, combined with 'leah', meaning a meadow or clearing.
Less common today
Brandtley isn't in the latest US Top 1000. It last peaked at #9,491 in 2015.
US births per 5-year period, 1990βpresent (SSA data).