Mortensen

Mortensen or Mortenson (in US) is a surname of Danish and Norwegian origin, meaning son of Morten. The Swedish variant is Mårtensson. Mortensen is currently the 20th most common surname in Denmark.

It may refer to the following people:

• Arne Mortensen (1900–1942), Norwegian rower
• Beverly Mortensen, American musician and composer
• Carlos Mortensen (born 1972), professional poker from Ecuador
• Christian Mortensen (1882–1998), Danish-American supercentenarian
• Chris Mortensen (born 1951), American journalist
• Clayton Mortensen (born 1985), American baseball player
• Dale L. Mortensen (1966–2020), American politician
• Dale T. Mortensen (1939–2014), American economist
• Dan Mortensen (born 1968), American rodeo rider
• Erling Mortensen (born 1955), Danish chess master
• Finn Mortensen (1922–1983), Norwegian classical composer
• Flemming Møller Mortensen (born 1963), Danish politician
• Greg Mortenson, American humanitarian
• Hans Christian Cornelius Mortensen (1856–1921), Danish teacher and ornithologist
• Jess Mortensen (1907–1962), American NCAA champion track athlete and coach
• Lars Ulrik Mortensen, (born 1955), Danish harpsichordist and conductor
• Malene Mortensen (born 1982), Danish singer
• Ole Mortensen (born 1958), Danish cricketer
• Ole Theodor Jensen Mortensen (1868–1952), Danish professor of zoology
• Stan Mortensen (1921–1991), English professional footballer
• Viggo Mortensen (born 1958), Danish-American actor, poet, musician, photographer and painter
• Marilyn Monroe (born Norma Jeane Mortenson, 1926–1962), American actress
• Svend Aage Mortensen (1942–2015), Danish cardiologist
• William Mortensen (1897–1965), American photographer, known for 1920s–1940s Hollywood portraits in the Pictorialist style
• Zachary Mortensen (born 1972), American film producer and writer