Arend Dickmann (1572–1627), more correctly Dijckman, was briefly Admiral of the Polish Navy. He was a Dutchman, born in Delft. He lived in the Polish port of Danzig (Gdansk) from 1608, and owned a merchant ship engaged in Baltic trade. Shortly after the outbreak of war with Sweden in 1626 he entered the service of the Polish king Sigismund III Vasa, and on 24 November 1627 was appointed admiral of the fledgling Polish Navy.