Fritiof

• The hero of Frithiof's Saga, an Icelandic saga finalized around 1300

• Frithjof M. Plahte (1836-1899), Norwegian merchant and landowner
• Frithjof Prydz (1841-1935), Norwegian judge
• Carl Frithjof Smith (1859-1917), Norwegian-German painter
• Fridtjof Nansen (1861-1930), Norwegian explorer
  • Fridtjof Nansen (disambiguation), things named in his honor
• Fritjof Heyerdahl (1879-1970), Norwegian engineer and industrial leader
• Frithjof Olsen (1882-1922), Norwegian gymnast
• Fridtjof Backer-Grøndahl (1885-1959), Norwegian pianist and composer
• Frithjof Olstad (1890-1956), Norwegian rower
• Frithjof Sælen (gymnast) (1892-1975), Norwegian gymnast
• Frithjof Andersen (1893-1975), Norwegian wrestler
• Fridtjof Knutsen (1894-1961), Norwegian journalist and crime novelist
• Fridtjof Paulsen (1895-1988), Norwegian speed skater
• Frithjof Lorentzen (1896-1965), Norwegian fencer
• Fridtjof Mjøen (1897-1967), Norwegian actor
• Carl Fridtjof Rode (1897-1984), Norwegian judge
• Frithjof Ulleberg (1911-1993), Norwegian footballer
• Frithjof Jacobsen (1914-1999), Norwegian diplomat
• Frithjof Tidemand-Johannessen (1916-1958), Norwegian designer and writer
• Frithjof Clausen (1916-1998), Norwegian wrestler
• Frithjof Sælen (writer) (1917-2004), Norwegian writer
• Fridtjof Frank Gundersen (born 1934), Norwegian jurist
• Leif Fritjof Måsvær (born 1941), Norwegian politician
• Frithjof Prydz (athlete) (1943-1992), Norwegian ski jumper and tennis player
• Fridtjof Røinås (born 1994), Norwegian racing cyclist
• Fridtjof Støre, singer for Norwegian band Albino Superstars (formed in 2004)

• Frithiof Holmgren (1831-1897), Swedish physician and physiologist
• Frithiof Mårtensson (1884-1956), Swedish wrestler
• Fritiof Domö (1889-1961), Swedish landlord and politician
• Fritiof Karlsson (1892-1984), Swedish politician
• Fritiof Nilsson Piraten (1895-1972), Swedish author
• Fritiof Svensson (1896-1961), Swedish wrestler
• Elof Fritjof Hillén (1893-1977), Swedish soccer player
• Frithiof Rudén, Swedish footballer
• Fritiof Billquist (1901-1972), Swedish film actor
• Tage Fritjof Erlander (1901-1985), Prime Minister of Sweden from 1946 to 1969
• Fritjof Lager (1905-1973), Swedish politician
• Fritiof S. Sjöstrand (1912-2011), Swedish physician and histologist
• Fritiof Enbom (1918-1974), Swedish railway worker
• Fritiof Andersson, title character of "Fritiof och Carmencita", a 1937 Swedish song written by Evert Taube
• Fritiof Björkén (born 1991), Swedish footballer

• Fritiof Andersen (1898-1954), Danish track and field athlete

• Frithiof Nevanlinna (1894-1977), Finnish mathematician

• SMS Frithjof (laid down 1890), German coastal defense ship
• Frithjof Henckel (born 1950), German rower
• Frithjof Schmidt (born 1953), German politician for the Greens
• Frithjof Kleen (born 1983), German sailor
• Frithjof Seidel (born 1997), German diver

• Frithjof Schuon (1907-1998), Swiss metaphysician

Norwegian descent

• Karl Fritjof Rolvaag (1913-1990), American politician

Swedish descent

• Fritiof Fryxell (1900-1986), American geologist and mountain climber

Austrian descent

• Frithjof Bergmann (1930-2021), German-American philosopher
• Fritjof Capra (born 1939), American physicist, ecologist, and systems theorist

• Fridtjof Island, lying in the Palmer Archipelago