Steffen \s-teffen, st(ef)-fen\ as a boy's name is a variant of Stefan (German, Scandinavian) and Stephen (Greek), and the meaning of Steffen is "crown, garland".
The baby name Steffen sounds like Steffon and Steffan. Other similar baby names are Stoffel, Stefonn, Staffan, Steen, Steven, Stefon and Steben.