Zachariassen is a Scandinavian surname. Notable people with the surname include:
Aksel Zachariassen (1898–1987), Norwegian politician, newspaper editor, secretary and writer Allan Zachariassen (born 1955), Danish long-distance runner Anders Zachariassen (born 1991), Danish handball player Frida Zachariassen (1912–1992), Faroese painter and writer Heini Zachariassen (born 1972), Faroese technology entrepreneur Karl Erik Zachariassen (1942–2009), Norwegian entomologist Kjetil Zachariassen (born 1968), Norwegian association football coach Kristoffer Zachariassen (born 1994), Norwegian footballer Rikke Zachariassen (born 1984), Danish handball player Rolf Zachariassen (1935–2024), Finnish sailor Sverre Zachariassen (1919–2002), Norwegian footballer
See also Fredrik Zachariasen (1931–1999), American physicist William Houlder Zachariasen (1906–1979), Norwegian-American physicist