•
Ada Jansen (born 1942), Dutch politician • (1798–1869), Brazilian politician •
Adam Jansen, American archivist •
Adrienne Jansen (born 1947), New Zealand author and educator •
Alandson Jansen da Silva (born 1988), Belgian-Brazilian footballer •
Alexandre Jansen Da Silva (born 1987), Belgian-Brazilian footballer •
Alf-Inge Jansen (born 1939), Norwegian political scientist and politician •
Amund Grøndahl Jansen (born 1994), Norwegian cyclist •
Anco Jansen (born 1989), Dutch football forward •
Angela Jansen (born 1929), American artist •
Annemiek Padt-Jansen (1921–2007), Dutch harpist and Labour Party politician •
Arne Jansen (born 1975), German jazz guitarist •
Astrid Jansen (born 1950s), Dutch figure skater •
Barend Coenraad Petrus Jansen (1884–1962), Dutch chemist and biochemist •
Bernt Jansen (table tennis) (born 1949), German table tennis player •
Birger Jansen (1948–2016), Norwegian ice hockey player and sailor •
Cas Jansen (born 1977), Dutch actor •
Catherine Jansen (born 1950), American photographer •
Chris Jansen (born 1966), Dutch politician •
Cisita Joity Jansen (born 1990), Indonesian badminton player representing Germany •
Ciska Jansen (born 1944), Dutch track and field athlete •
Cornelius Jansen (1585–1638), Dutch theologian (Jansenism) •
Cornelius Jansen (Bishop of Ghent) (1510–1576), Flemish religious leader (Jansen of Ghent) •
Dan Jansen (born 1964), American speed skater •
Dan Jansen (sledge hockey), Canadian ice sledge hockey player •
Daniel Jansen (basketball) (born 1994), American basketball player •
Daniel Jansen Van Doorn (born 1990), Canadian volleyball player •
Daniëlle Jansen (born 1970), Dutch politician •
Danny Jansen (born 1995), American baseball player •
Dave Jansen (born 1979), American mixed martial artist •
David Jansen (born 1987), German football forward •
DeWitt Clinton Jansen (1840–1894), American hotelier and politician and judge in Shanghai •
Dolf Jansen (born 1963), Dutch comedian and radio presenter •
Duan Jansen (born 2000), South African cricketer •
Ea Jansen (1921–2005), Estonian historian •
Eelco Jansen (born 1969), Dutch baseball player •
Einar Jansen (1893–1960), Norwegian historian, genealogist and archivist •
Ellen Jansen (born 1992), Dutch football forward •
Emily Jansen (born 1977), Australian amputee skier •
Eric Jansen (born 2000), German footballer •
Ernest George Jansen (1881–1959), South African politician •
Ernst Jansen Steur (born 1945), Dutch neurologist •
Eystein Jansen (born 1953), Norwegian marine geologist •
Floor Jansen (born 1981), Dutch singer •
Floris Jansen (born 1962), Dutch cricketer • (1925–2001), Dutch comedian •
Freek Jansen (born 1992), Dutch politician • (born 1976), Dutch gymnast and television presenter •
Gaite Jansen (born 1991), Dutch actress •
Geert Jan Jansen (born 1943), Dutch art forger •
George Jansen (fl. 1950s), American test pilot • (born 1964), Dutch draughts player •
Guy Jansen (1935-2019), New Zealand author and musician •
Haakon Jansen (1900–1968), Norwegian long-distance runner •
Hanneke Jansen (born c. 1970), Dutch computational chemist • (1931–2019), Dutch theologian and scholar of anti-semitism •
Hans Jansen (1942–2015), Dutch politician and scholar of contemporary Islam •
Hans-Jürgen Jansen (born 1941), German footballer •
Harm Jansen (born 1967), Dutch racing cyclist •
Harrie Jansen (born 1947), Dutch racing cyclist •
Harry August Jansen (1883–1955), Danish-born American magician •
Heinrich Jansen (1625–1667), Danish Baroque painter •
Hermann Jansen (1869–1945), German architect and urban planner •
Hernán Jansen (born 1985), Venezuelan fencer •
Huub Jansen (born 1962), Dutch cricket umpire •
Igor Jansen (born 2004), Brazilian actor •
Irene Jansen (born 1983), Dutch singer •
J. J. Jansen (born 1986), American football long snapper •
Jacques Jansen (1913–2002), French singer •
Jan Jansen (cyclist) (born 1945), Dutch cyclist •
Jan Jansen (historian) (born 1962), Dutch historian •
Jan B. Jansen (1898–1984), Norwegian professor of medicine •
Jan Helge Jansen (born 1937), Norwegian politician •
Jan K. S. Jansen (1931–2011), Norwegian professor of medicine •
Janine Jansen (born 1978), Dutch violinist •
Jarrad Jansen (born 1995), Australian rules footballer •
Jennette Jansen (born 1968), Dutch Paralympian •
Jens Jonas Jansen (1844–1912), Norwegian priest •
Jochem Jansen (born 1990), Dutch football defender •
Joeri Jansen (born 1979), Belgian middle-distance runner •
Johan Jansen (born 1989), Dutch football goalkeeper •
Johann Joseph Jansen (1825–1849), German socialist revolutionary •
Johannes Jansen (1829–1891), German historian and priest •
Johannes Jansen (mayor) (1665–1734), Mayor of New York City from 1725 to 1726 •
Johannes Henricus Gerardus Jansen (1868–1936), Dutch Archbishop •
John Jansen (politician) (born 1947), Canadian (British Columbia) politician •
John Jansen (record producer) (born 1947), American recording engineer and music producer •
John Jansen (rugby league) (born 1955), Australian rugby league player •
John Jansen (water polo) (born 1963), Dutch water polo player •
Jon Jansen (born 1976), American football offensive tackle. •
Jonas Jansen (1900–1975), Norwegian archivist •
Jones Ralfy Jansen (born 1992), Indonesian badminton player •
Jordan Jansen (born 1998), Australian pop singer •
Jos Jansen (born 1954), Belgian rallycross driver •
Karl Jansen (1908–1061), German weightlifter •
Kathleen Jansen, American (Michigan) judge •
Kati Jansen (born 1934), German freestyle swimmer •
Kenley Jansen (born 1987), Dutch baseball player •
Kevin Jansen (born 1992), Dutch football midfielder •
Larry Jansen (1920–2009), American baseball player •
Laura Jansen (born 1977), Dutch-born American singer-songwriter •
Laura Jansen van Vuuren (born c.1958), South African Navy admiral •
Lauren Jansen (born 1992), Australian basketball player •
Leen Jansen (1930–2014), Dutch boxer •
Leo Jansen (1930–1980), Dutch painter •
Leoni Jansen (born 1955), Dutch singer •
Louise Mai Jansen (born 1984), Danish swimmer •
Lynette Jansen, South African racing cyclist •
Maarten Jansen (born 1952), Dutch archaeologist and Mesoamericanist •
Mallory Jansen (born 1989), Australian actress •
Marcell Jansen (born 1985), German footballer •
Marco Jansen (born 2000), South African cricketer •
Marco Jansen van Vuren (born 1996), South African rugby player •
Marcus Jansen (born 1968), American painter in Germany •
Marie Jansen (1857–1914), American actress •
Marijke Jansen (born 1944), Dutch tennis player •
Marius Jansen (1922–2000), American Japanese history academic •
Mark Jansen (born 1978), Dutch metal musician •
Mark Jansen (politician), American (Michigan) politician •
Marlon Jansen (born 1980), South African cricket umpire •
Matt Jansen (born 1977), English footballer •
Maximilian Jansen (born 1993), German footballer •
Maya Jansen (born 1994), American tennis player •
Mex Jansen (born 2006), Dutch racing driver •
Michael Jansen (born 1984), Dutch footballer •
Michel Jansen (born 1966), Dutch football manager •
Misael Silva Jansen (born 1987), Brazilian football striker •
Monifa Jansen (born 1993), Curaçaoan beauty pageant •
Monique Jansen (born 1978), Dutch discus thrower •
Nils Jansen (born 1959), Norwegian jazz musician •
Paige Jansen-Nichols, American Jewelry designer and business executive •
Patrick Jansen (1920–2003), Indian hockey player •
Paulus Jansen (born 1954), Dutch politician •
Pearl Jansen (born 1950), South African beauty queen and singer •
Per Jansen (1941–2022), Norwegian stage and film actor •
Peter Jansen (art educator) (born 1938), Dutch artist •
Peter Jansen (politician) (1852–1923), American (Nebraska) politician •
Peter Jansen (rower), New Zealand rower •
Petter Jansen (born 1955), Norwegian business executive •
Philip Jansen (born 1967), British businessman •
Pierre Jansen (1930–2015), French film scores composer •
Pieter Jansen (born 1995), South African rugby player •
Pieter Jansen van Vuren (born 1991), South African rugby player •
Querelle Jansen (born 1985), Dutch model •
Quint Jansen (born 1990), Dutch footballer •
Rassie Jansen van Vuuren (born 1985), South African rugby player •
Ray Jansen (1889–1934), American baseball player •
Renate Jansen (born 1990), Dutch football striker •
Robbie Jansen (1949–2010), South African musician •
Rocco Jansen (born 1986), South African rugby player •
Roeliff Jansen (1602–1637), Norwegian settler in New Netherland •
Rogier Jansen (born 1984), Dutch basketball player •
Ronald Jansen (born 1963), Dutch hockey player •
Ross Jansen (1932–2010), New Zealand politician, mayor of Hamilton •
Roy Jansen (born 1950), Norwegian ice hockey player •
Rudolf Jansen (1940–2024), Dutch pianist •
Rudy Jansen (born 1979), Dutch footballer •
Sacharias Jansen (1585–1632), Dutch spectacle-maker associated with the invention of the telescope and microscope •
Sandra Jansen (born 1963), Canadian (Alberta) politician •
Sharon Jansen, New Zealand architect •
Sigurd Jansen (born 1932), Norwegian composer, pianist and conductor •
Stefan Jansen (born 1972), Dutch footballer •
Steve Jansen (born 1959), English musician, composer and record produce •
Steve Jansen (soccer) (born 1967), Canadian soccer player • Steven Jansen (unknown birth year), Dutch EDM producer, half of
Lucas & Steve •
Susan Estelle Jansen, American television producer and writer •
Theo Jansen (born 1948), Dutch artist •
Theo Jansen van Rensburg (born 1967), South African rugby player •
Therese Jansen Bartolozzi (ca.1770–1843), German pianist • (born 1945), Dutch movie actor •
Torsten Jansen (born 1976), German handballer •
Torsten Stiig Jansen (born 1963), Danish journalist •
Ulli Jansen (1931–2006), German ice hockey player •
Uwe Jansen, German rugby league coach •
Wim Jansen (1946–2022), Dutch footballer •
Wolfgang Jansen (1938–1988), German actor •
Yibbi Jansen (born 1999), Dutch field hockey player ==As a patronym==