Achton is a Danish given name.
People with this name include:
Achton Mikkelsen (born 1932), Danish boxer Achton Friis (1871–1939), Danish illustrator, painter and writer, who participated in the Denmark expedition to Northeast Greenland in 1906–1908
See also Achton Friis Islands (Danish: Achton Friis Øer), a group of uninhabited islands in the Greenland Sea, Greenland, named in honour of Achton Friis