Loch Brand or Loch of Boghall was a loch situated in a depression between the Grange Estate, Crummock, Hill of Beith Castle site and Boghall in the Parish of Beith, North Ayrshire, Scotland. The loch was fed by the Grange Burn and surface runoff, such as from the old rig and furrows indicated by Roy's Maps of the mid 17th century.