Steffen

Steffen is a surname and given name, and may refer to:


 * Albert Steffen (1884–1963), Swiss poet, painter, and novelist
 * Alex Steffen (b. 1968), American writer and environmental futurist
 * Anthony Steffen (1929–2004), Brazilian actor; acted in many spaghetti westerns
 * Britta Steffen (b. 1983), German Olympic swimmer
 * Clare E. Steffen (b. 1954), American psychologist
 * David Steffen, American businessman and politician
 * Hans Steffen (1865–1937), German geographer and explorer of Patagonia
 * Jason Steffen (b. 1975), American physicist
 * Jim Steffen (1936–2015), American football player
 * Kai Steffen (born 1961), German football player
 * Konrad Steffen (1952-2020), Swiss glaciologist and Arctic climate researcher
 * Otto Steffen (b. 1874, d. unknown), American Olympic gymnast
 * Renato Steffen (born 1991), Swiss football player
 * Sonja Steffen (b. 1963), German politician
 * Thomas L. Steffen (1930–2020), American judge
 * Waldemar Steffen (b. 1872, d. unknown), German Olympic track and field athlete
 * Walter Steffen (1886–1937), American professional football player
 * Willi Steffen (1925–2005), Swiss football player
 * William L. Steffen (1947–2023), Australian climate science expert and researcher
 * Zack Steffen (born 1995), American soccer player
 * Steffen Frølund (born 1984), Danish politician
 * Steffen Jürgens (born 1967), German actor and film director
 * Steffen Larsen (born 1983), Danish politician
 * Steffen Tangstad (1959–2024), Norwegian boxer