The Élan Béarnais was founded in 1931 in the town of Orthez in Pyrénées-Atlantiques in the southwest of France. The club first reached the top level of French professional basketball in 1973. They were immediately relegated back to the second division, but returned to the top flight in 1976. The club then made their European debut one year later, in 1977, by qualifying for the FIBA Korać Cup. Their ascent continued by winning the FIBA Korać Cup in 1984, defeating Crvena zvezda in the final in Paris ("Palais des sports Pierre-de-Coubertin"). This was the first of many pieces of silverware that would be added to the club's trophy cabinet over the next two decades.