Association Sportive de Saint-Étienne Loire (commonly known as AS Saint-Étienne, ASSE, or simply Saint-Étienne) is a French association football club based in Saint-Étienne. The club was founded in 1919 and currently plays in Ligue 1, the top division of French football. Saint-Étienne plays its home matches at the Stade Geoffroy-Guichard located within the city. The team is managed by Christophe Galtier and captained by Loïc Perrin, who started his career at the club in 1996. Saint-Étienne is, arguably, the most successful club in French football history having won ten Ligue 1 titles, six Coupe de France titles, a Coupe de la Ligue title and five Trophée des Champions. The club's ten league titles are the most professional league titles won by a French club, while the six cup victories places the club third among most Coupe de France titles. Saint-Étienne has also won the second division on three occasions. The club achieved most of its honours in the 1960s and 70s when the club was led by managers Jean Snella, Albert Batteux, and Robert Herbin. Saint-Étienne's primary rivals are Olympique Lyonnais, who are based in nearby Lyon. The two teams annually contest the Derby du Rhône. In 2009, the club added a female section to the football club. Saint-Étienne have produced several notable players, mostly during its dynastic run in the 1960s and 70s, who have gone on to have coaching careers domestically and internationally. The club unearthed players and managers such as Aimé Jacquet, Jacques Santini, Laurent Blanc and Michel Platini. Each player went on to have a managerial stint with the France national team. Jacquet coached the team to victory at the 1998 FIFA World Cup, while Santini won the 2003 FIFA Confederations Cup. Blanc was the manager of the national team for two years between 2010 and 2012.

L'Association Sportive de Saint-Étienne Loire, noto semplicemente come Saint-Étienne, spesso abbreviato in ASSE, è un club calcistico francese di Saint-Étienne. Fondato nel 1919, disputa gli incontri interni al Geoffroy Guichard, stadio appartenente alla città metropolitana di Saint-Étienne e già di proprietà dello stesso club fino al 1965. È la prima compagine del Paese per campionati nazionali vinti (davanti a Olympique Marsiglia e PSG, entrambe a nove), avendone conquistati dieci tra il 1957 e il 1981, e terza per titoli francesi complessivi dopo Paris Saint-Germain e Olympique Marsiglia: vanta infatti anche sei Coppe di Francia, una Coppa di Lega e cinque Supercoppe francesi. In ambito UEFA la miglior affermazione è il raggiungimento della finale di Coppa dei Campioni 1975-76, persa a Glasgow contro il Bayern Monaco. Nei suoi anni di maggior successo contribuì con importanti giocatori della propria rosa alla prima grande stagione di vittorie internazionali della Francia : vestirono infatti la maglia blu della selezione nazionale elementi come Gérard Janvion, Dominique Bathenay, Dominique Rocheteau e soprattutto Michel Platini. Al 2020-21 la squadra milita in Ligue 1 e il suo più recente successo è la Coppa di Lega 2013, a trentadue anni di distanza dal precedente titolo, la vittoria del campionato nazionale 1981.