Steponavičius
Steponavičius is a Lithuanian language family name. It corresponds to East-Slavic Stepanovich and South Slavic Stepanović. The surname is derived from the name Stepan.

The surname may refer to:
 (1927–1996), Lithuanian artist, a Lithuanian National Culture and Arts prize recipient
Birutė Žilytė-Steponavičienė, Lithuanian graphic artist
Dalius Steponavicuis, founder of Speed Factory Racing
Gintaras Steponavičius, Lithuanian politician, speaker of Seimas, minister of education
Julijonas Steponavičius, bishop of Vilnius

Lithuanian-language surnames