Literally ‘the Scot’ — a settler byname carried into Ulster in large numbers during and after the Plantation.
Scottish Origin · Root meaning ‘the Scotsman’
Scott is about as plain as a surname gets — a byname simply meaning ‘the Scot’, marking someone as a Scottish Gael or Lowlander among English or Irish neighbours. It arrived in Ulster in real numbers with the Plantation of the early 1600s.
A name that describes an origin rather than claiming a kingdom — and became, in Ulster, ordinary enough that the description stopped needing saying.
Irish form: (no Gaelic form)