Marius Žaliukas (born 10 November 1983 in Kaunas, Lithuanian SSR) is a Lithuanian footballer who lastly played for A Lyga club Žalgiris.
He plays as a centre back, but can also play as a defensive midfielder.
Žaliukas has previously played for Inkaras Kaunas, FBK Kaunas, FK Šilute, Hearts Leeds United and Rangers He also plays for the Lithuania national side.