Stade Sportif Sfaxien () (SSS, sometimes called the "3S") is a Tunisian football club from the city of Sfax. It get its name from its sponsor: The Société industrielle d'acide phosphorique et d'engrais (SIAPE).
The club played in the Tunisian Ligue Professionnelle 1 for 7 seasons and then was relegated to the Tunisian Ligue Professionnelle 2. The last years they play in the Tunisian Ligue Professionnelle 3. At the season 2008âÂÂ2009 the SSS was on the last position of the final table of the Tunisian Ligue Professionnelle 3 and was relegated in to the Honor division, LA4.
In 2007âÂÂ2008, the club was eliminated in the 1/8 finals from the Tunisian President Cup against Club Sportif de Hammam-Lif, in Hammam Lif 3âÂÂ1. At the season 2009âÂÂ2010 le stade sportif sfaxien was eliminated in the 1/8 finals from the Tunisian President Cup against Club Africain 5âÂÂ0 at Stade Olympique d'El Menzah .
The Stade sportif sfaxien usually play at the Stade du 2-mars in Sfax but currently plays in the Stade de la cité El Habib. Larger matches are played at Stade Taïeb Mhiri in Sfax.