The Étoile Sportive du Sahel (Arabic: النجم الرياضي الساحلي), known as ES Sahel or simply ESS for short, is a Tunisian football club based in Sousse in the Sahel region of Tunisia. Their home stadium, Sousse Olympic Stadium, has a capacity of 50,000 spectators. The club is currently playing in the Tunisian Ligue Professionnelle 1, the Tunisian top-flight football league.

The club was founded on 11 May 1925 after a general meeting under the chairmanship of Chedly Boujemla, Ali Laârbi and Ahmed Zeglaoui, at the headquarters of the Association of the ancient French-Arab School in Laroussi Zarouk Street, in the heart of the old town of Sousse. The aim of the meeting was to establish a sports education society. The Tunisian flag was chosen in the selection of the colors of the team. The red shirt with the star and the white shorts. The French colonial authorities prevented the use of these colors, but with the insistence of the team leaders they prevailed and in the latter they played this kit. In English the name means Sport (or Athletic) Star of the Sahel (coast).

On the continental side, Étoile du Sahel has won 9 trophies of competitions of the Confederation of African Football, more than any other Tunisian team. The club has 1 CAF Champions League, 2 CAF Cups, 2 CAF Super Cups titles, 2 CAF Confederation Cups titles and 2 African Cup Winners' Cups.

Internationally, Étoile du Sahel was the first Tunisian club to participate in the FIFA Club World Cup. They competed in the fifth edition that took place in 2007 in Japan. The club became the second club to reach the FIFA Club World semi-final as the representative of CAF, after Al Ahly SC in 2006, as they defeated Pachuca CF at the quarter-final of 2007 FIFA Club World Cup.