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 Glacier in the Northern Patagonian Ice Field

This page lists people with the surname Steffen.
If an internal link intending to refer to a specific person led you to this page, you may wish to change that link by adding the person's given name(s) to the link.