Dirk Hartog (Dutch pronunciation: [d?rk '??rt?x]; baptized 30 October 1580 – buried 11 October 1621) was a 17th-century Dutch sailor and explorer.
Dirk Hartog's expedition was the second European group to land in Australia and the first to leave behind an artefact to record his visit, the Hartog plate.
His name is sometimes alternatively spelled Dirck Hartog or Dierick Hartochszch.