The Breton motto "Pen Huel", meaning "Heads up", still gives its name to a stand at Stade Francis-Le Blé, and it is a good key to the history of Stade Brestois 29. The motto was adopted in 1903 by Armoricaine de Brest, the sports section of a Catholic patronage, whose tradition the present club inherited. Stade Brestois itself was formed on 26 June 1950 by the merger of five Catholic patronages in the city, and the number 29 in its name refers to the Finistère département. The club plays in red and white and is known as Les Pirates.
The ground stands on the Petit Paris site, where a stadium was built in 1922 and inaugurated on 9 February 1923 with a match between Armoricaine and Stade Français. The club's climb through French football was gradual: the Championnat de France Amateur in 1958, the second division in 1970, and the top flight for the first time in 1979. That first season ended in last place, but Brest won Division 2 in 1980–81 and returned to stay. Between 1981 and 1991, under president François Yvinec, the club spent nine seasons in the top division in ten years. In 1987, after signing South American players, it finished eighth, a position it did not match until 2024. Its squads included Paul Le Guen, Vincent Guérin, Corentin Martins, David Ginola, Roberto Cabañas and Stéphane Guivarc'h.
The decade ended in collapse. In 1991, despite finishing 11th, Brest was administratively relegated because of its financial deficit, and in December of that year the club filed for bankruptcy, with liabilities estimated at 150 million francs. The professional team was dissolved, and the reserve side carried on the club's name. In 1993 it was promoted to the new National 1, and then spent years in the lower divisions. In 2004, with a young Franck Ribéry in the squad, Brest won promotion to Ligue 2. Under coach Alex Dupont it finished second in 2009–10 and reached Ligue 1 in 2010. It went down in 2013 as the bottom club, and returned to the top flight in 2019, where it has played ever since.
The club's greatest season was 2023–24, under coach Éric Roy and president Denis Le Saint, who has chaired the club since 2016. In March 2024 Brest extended an unbeaten run to 13 matches, a club record, and on 28 April it won 5–4 away at Rennes to secure European football for the first time. On the final matchday it beat Toulouse 3–0 away and finished third in Ligue 1 with 61 points, the best result in its history, which brought direct qualification for the Champions League.
Brest's 2024–25 Champions League campaign was a debut in every sense. Because Stade Francis-Le Blé did not meet UEFA's requirements, home matches were played at Guingamp's Stade du Roudourou. The first match, on 19 September 2024, was a 2–1 win over Sturm Graz thanks to a goal from Abdallah Sima. On 1 October Brest won 4–0 away at Red Bull Salzburg, its first official match outside France. It then drew 1–1 at home with Bayer Leverkusen, with a goal from Pierre Lees-Melou, won 2–1 at Sparta Prague and beat PSV Eindhoven 1–0, while losing to Barcelona, Shakhtar Donetsk and Real Madrid. Brest finished 18th in the league phase and reached the knockout play-offs, where it lost to Paris Saint-Germain 0–3 at home and 0–7 away.
Today Brest remains a small-city club from the western tip of France, and its story of a merger, a collapse and a rebuilding explains why the motto "Pen Huel" is still remembered at the stadium.