|Date of birth||6 March 1976|
|Place of birth||Bugojno, SFR Yugoslavia|
|Height||1.86 m (6 ft 1 in)|
|Playing position||Centre back|
|* Senior club appearances and goals counted for the domestic league only.
Stjepan Tomas (born 6 March 1976) is a retired Croatian footballer. His previous clubs include Dinamo Zagreb, Vicenza Calcio, Como, Fenerbahçe, Galatasaray and Rubin Kazan. He played as centre back, and at one point of his career even as defensive midfielder.
In August 2007, he signed a 2-year contract with Russian club FC Rubin Kazan, for a fee of €4.8 million. On 31 January 2010, he signed a contract with Turkish side Gaziantepspor until end of the season. Then he moved to Bucaspor, a newly promoted Super Lig team.
Tomas was part of the Croatia national team at the 2002 FIFA World Cup where he played in all three games in the group stage before they were eliminated. He was also on the national squad at Euro 2004 but did not play any games in the tournament. He also played for the national team in their third and last game at the 2006 FIFA World Cup.
- Süper Lig: 2003–04
- Russian Premier League: 2008, 2009